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Wednesday, March 20, 2019

The spiritist interpretation of dreams

"The dream" by Pierre-Cécile Puvis de Chavannes, 1883Source: Wikipedia.
"Poor human beings! how little do you know of the commonest phenomena of your life! You
fancy yourselves to be very learned, and you are puzzled by the most ordinary things. To
questions that any child might ask, 'What do we do when we are asleep?' 'What are dreams?'
you are incapable of replying." (1)

“One day it will have to be officially admitted 
that what we have christened reality is 
an even greater illusion than the world of dreams.” ― Salvador Dali

We sleep a considerable portion of our lives, more precisely, about one-third of our incarnate lives. What happens in this state? It is easy to understand the need for sleep - so natural that we hardly question its importance - however, how do we justify dreams? What does the understanding of the dual nature of the human being, allowed by the Spiritist knowledge, help us to understand the mechanism of dreaming? 

The dream experience is quite different from the ordinary experiences of the waking state. The latter admits "witnesses", who share these experiences publicly. If I travel with my family to a tourist destination, the experiences I had there are the same my relatives had. In dreams, however, this does not apply. Thus, if I dream about going to a distant place with my relatives, they will not confirm the same experience if I question them about their dreams. In principle, the whole experience of dreaming is private, that is, lived only in the "first person", by myself exclusively. Such a striking difference makes dreams to be considered mental experiences par excellence, that is, experiences created solely by the dreamer's mind. 

Another distinguishing feature of dreams (I have already experienced this myself) is the apparent lack of causal connection among events within a dream. What happens at a particular moment - even though the apparent cause is declared in the dream - is not related causally to the following dream action. I remember a dream when I parked a car in a certain place. After other facts in the dream, when I return to get the car, it was no longer there or, at least, I could not remember where I had left the car in the dream... But I also remember dreams in which I was aware I was dreaming and could also keep the details of previous dreams connected to the last one I was having. In these cases, I was just finishing an adventure of a few nights before (someone told me in the dream): a situation best described as a "lucid dream".

The dream as a mnemonic synthesis of past experiences of the soul during sleep.
Dreams are the remembrance of what your spirit has seen during sleep, but you must remark that you do not always dream, because you do not always remember what you have seen, or all that you have seen. Your dreams do not always reflect the action of your soul in its full development; for they are often only the reflex of the confusion that accompanies your departure or your return, mingled with the vague remembrance of what you have done, or of what has occupied your thoughts, in your waking state. (1)
As already described in Question #402 in The Spirit's Book (1), dreams do not reduce themselves simply to the state of the soul freed from the body. If this were so, the experience, although private, should be consistent, in other words, dreams would be indistinguishable from "out-of-the-body" experiences. Dreams may be described rather as a kind of mnemonic synthesis of what occurs during sleep which is meaningful to the spirit; a re-construction or assembly, greatly affected by memories of past experiences, of what is important to the mind during sleep. Although the mechanism is fully unknown, this synthesis or composite is constructed from almost everything relevant to the individual at the moment of awakening: desires, fears, the reinterpreted experience of the previous day, memories of the present and past lives, and even past experiences the spirit has had recently, that is, the very memories of other dreams.

For me, the immense majority of people (including myself) cannot perfectly retain, through the "prism of the brain", the memories acquired by the senses of the soul during the dreaming state. The events of the dream are therefore recreated from a "bank of memories", almost entirely based on previous experiences of the waking state. It is like creating a new movie using a sequence of edited scenes from old films. In this "editing" process, the memory bank is accessed and its symbols, scenes or poses are used to "synthesize" a memory of the actual experience. Thus, after waking up, most recollected sequences are often erratic or does not fit into a rational or logic arrangement.

For example, imagine that I, in spirit state, was in contact with other people during sleep. When I awake, the remembrance process will most likely substitute the personality whom I have been in contact with by other people I recognize in the vigil state: sometimes a friend I know later was indeed awakened, or another person whom I have long forgotten and so on. It is even possible that the dream is filled out with an image of a discarnate relative. And so we usually wake up with the impression of having been in contact with that dead relative, but in fact, that was not true. It was rather a recreation because in no way my physical brain is able to sustain faithfully the images of my actual experience as a spirit in the dream. Only the script is more or less similar. The mnemonic assembly is necessary to give a meaning of those experiences lived in the dream to my consciousness in the awakened state. We should remember that the experiences of the dream do not reach the soul through the common pathways of the material senses (the nervous system). Therefore, they are reinterpreted when they finally reach the brain when we awake.

So, those were not the ones I have been in contact with when I dreamed about my deceased mother, father or any other relative? Not necessarily. A somewhat different situation occurs in the already mentioned lucid dreams, which are a category of rare and peculiar dreams. In them, the dreamer knows he/she is dreaming or is having the experience. In the dreams I had with my deceased mother, I had a distinct impression that she came to visit me. Amazingly, the dream environment was the bed I was lying - somehow I know it - and the dream finished when I woke up in tears. These particular dreams differ greatly from the immense majority of banal, meaningless dreams we have often because they are full of meaning to us.

The idea of dreams as a process of re-creation of experience of the soul during sleep by assembling preexisting memories allows us to explain the so-called "premonitory dreams". In fact, these can also be recreated from previous images, but they deal with future events based on the experience of the soul in the Beyond regarding these facts. Trying to interpret them may be a frustrating practice because they only make sense to the dreamer who preserves their real meaning unconsciously. Moreover, premonition dreamers might not be competent in conveying or communicating the true meaning in time, which is a source of countless confusions.

In summary, we can divide the impressions caused by the dreams in three levels of meanings:
  1. The deep meaning, ultimately existing only for the soul, that is, as an unconscious "memory" impressed to the incarnate being, an "unfelt awareness". The sense can be recapitulated in other dreams or invoked in lucid dreams. It certainly survives physical death as the heritage of the soul experience,
  2. The fragmented vigil meaning, recreated on the base of preexisting images or memories of the vigil state, the materialized meaning for the waking being, perhaps to be forgotten with physical death,
  3. The sense conveyed to others, depending on our ability to communicate the dream experience to others in the incarnate world. This meaning can cause a very different impression, making their "interpretation" difficult, although in some anomalous case, the meaning is very clear. 
"Joseph interpreting Pharaoh’s dream" (Genesis cap 41, 14-36),
The Phillip Medhurst Picture Torah 199. Source: Wikipedia.
The importance of anomalous dreams

Presently, most of the theoretical impasse regarding the most popular conceptions of the mind is due to their exclusive reference to the events taking place with the immense majority of people. I understand the reason from a practical point of view. Statistically, it makes sense to devote research effort to what happens most of the time. By doing this, however, we sacrifice the understanding of the deeper causes in detriment of what is more frequent. Thus the anomalies that occur with only a few are swept under the rug by explanations seemingly applicable to what is general. It is reasonable to ask if the truest theory is the one fitting the majority of the facts or the one leaving no fact aside. In medicine, one does not learn anything about diseases by studying only healthy people. Therefore, anomalies should be regarded since they are a way to establish correlations and to explain the exceptions beyond the rule.

The so-called "anomalous dreams" represent precisely this situation. Unlike ordinary dreams, they resemble lucid dreams by bringing meaningful messages containing "anomalous content". An elucidating work about anomalous dreams is due to S. Krippner and L. Faith entitled "Exotic dreams: A cross-cultural study" (2). In this work, the authors identified (from a set of about 1700 dream reports), nearly 185 (or 8%) considered "exotic". Such reports were then classified according to several types: healing dreams, lucid dreams, creative dreams, dreams with out-of-body experiences, shared dreams, dreams within dreams (as I had), dreams of past lives, visitation dreams, etc.

The so-called "shared dreams" are particularly interesting. These are reports of people who experience mutual dreams or dreams whose content is partially shared among individuals. Thus, the "first person" character of dreams may be weakened (3).

In creative dreams, Krippner and Faith reported dream narratives in which people were aided in dreams to solve problems of everyday life.

In a visitation dream, a painter from Japan reported having been advised by her father, who died in World War II, to choose her paintings and even on how to use the brush. The experience was highly significative and helped to improve the painter professional performance.

According to the authors in (2), dreams about tragedies (precognitive dreams) do not always end in a fatal way. They usually manifest themselves as the announcement of diseases or vulnerable situations of people at a distance.

Finally, the authors in (2) suggest a correlation between the incidence of anomalous dreams and the cultural environment in which they occur. In fact, this correlation is expected, considering that dreams are interpreted in terms of previous mental baggage. Therefore, the greater the individual' awareness about spiritual realities, the clearer will be their representation in exotic or peculiar dreams.

As for lucid dreams, it is possible that most people have already experienced - at least once in life - this kind of dream which would be more expected in cultures which value spirituality.

Conclusions

In this note, I have listed some relevant aspects to our understanding of the genesis and unfolding of dreams. A suitable explanation of the mechanism of dreams must both explain the dynamics with the vast majority of people, and the peculiar cases occurring with specific groups as well. Such anomalous experiences may also manifest at least once in people's life.

It is not possible to understand dreams without appealing to the dual nature of the human being, a simple reality that is able to explain both the reported exceptions and everyday life dreams. What we call dreams are, in fact, memories of events taking place during sleep, memories that are reconstructed out of other perceptions of facts lived by the person in the awaken state. This explanation agrees with the idea that, in the dream state, the spirit cannot excite the body directly (that is, the brain), because it is partially detached from it. In the process of "reassembling" the experience as a meaningful narrative to the vigil state, experiences of the present life (everyday facts, known people etc) are used, just as "extraordinary" memories (e. g., of previous lives, or other dreams etc).

The random, erratic or senseless impression of most dreams is a consequence of such reassembly of memories from a bank of internal fragments. In general, the meaning of dreams only exists unconsciously for the person who experiences it. It is very difficult to interpret dreams correctly, although this might be possible exceptionally.

The understanding that dreams are memories of the spiritual life allows us to explain a great variety of accounts considered "anomalous", which are then important sources confirming the proposed mechanism behind dreams. Without proper attention to such anomalous accounts, dreams are often considered merely as "hallucinations" or "fantasies" of the brain, showing no correlation with the true and hidden reality.

In addition to dividing dreams between "ordinary" and "peculiar" types, for most people, dreams may be further subdivided into "ordinary/common" and "lucid" dreams. In the last case, the dreamer knows he/she is dreaming and, therefore, can "control" the dream in principle. Apparently, such control is subjected to training (4).

It seems evident that dreaming is an important stage in the progress of the incarnate soul. By countless repetitions, the spirit liberates itself from the physical world and recalls its disembodied life. In a certain sense, dreaming is a training process for the ultimate physical deliverance that we call death.

References

(1) Question 402, "The Spirit's Book" (A. Kardec). Translated from French by Anne Blackwell. Online version here: http://geeaknorge.com/wp-content/uploads/2014/05/Spiritsbook.pdf (March 2019).

(2) Krippner, S., & Faith, L. (2001). "Exotic dreams: A cross-cultural study". Dreaming, 11(2), 73-82.

(3) Another work related to shared dreams is Davis, W. J., & Frank, M. (1994). "Dream sharing: A case study". The Journal of Psychology, 128 (2), 133-147.

(4) See, e. g., May E. C & LaBerge S. (1991) "Anomalous Cognition in Lucid Dreams". Science Applications International Corporation. In March 2019, this work can be downloaded here:

https://www.cia.gov/library/readingroom/document/cia-rdp96-00789r003100140001-2












Thursday, March 22, 2018

Draft of a spiritist explanation of sleep paralysis

"Nightmare" by Johann Heirich Füssli (1741-1825).

To know the effects of this unseen force that dominates and subjugates us despite our will would mean possessing the key to many issues, as well as answers for many ignored occurrences. If the consequences can be terrible, isn't recognizing the source of evil a way to protect ourselves from it, just as understanding the qualities of electricity gave us the ability to mitigate the disastrous effects of lightning? (A. Kardec, [6])

The scene is one of a delightful Saturday afternoon. I seek afternoon repose to recoup from the week's exhaustion. Sleep, however, does not come in the usual way. Just before waking up, I begin to notice everything around me. Through half-closed eyes, I observe the room's familiar decor. Panic and despair overtake me, and I am unable to rise. I hear the voices of distant family members who are aware I am asleep. I try to turn my head, but what a horrible surprise! It is made of lead. I try to raise my arm over my abdomen, but it seems like it's turned to concrete. I tried to turn my arm and torso as if I manipulated tools, not a body. How long did I stay in this state? I can't say, but when I finally wake up, for reasons I don't understand, I feel like I've returned to my own body, which gives me a sense of comfort. I just had sleep paralysis.

How many times have I experienced it? Probably three times in my life I guess. The so-called "sleep paralysis" is an uncommon event in a person's life, but it is relatively common in the population. My personal experience described above is by no means typical. In addition to the sense of powerlessness caused by being unable to "adjust" to the body, there are tales of presences, anomalous perceptions, or intrusive figures in the scene of people desperately attempting to awaken. The stories are similar and describe a common sensation: that the personality stays intact, aware of its surroundings, but for some reason, it is unable to adjust to the body and ends up perceiving what appears to be a combination of "reality" and "hallucinations".

Hallucinations. Reports of anomalous occurrences during sleep paralysis.

The term "hallucination" is something recent in the specialized literature. It was created by J. Étienne Esquirol [1] in 1845. Before that, the term used for such occurrences was "apparition". It is noteworthy that, in the works of A. Kardec, the former is used in the sense that has become dominant, while the latter has taken on another meaning. In cases of sleep paralysis, it is common to use the terms "hypnagogic" and "hypnopompic" hallucinations, which should not be frightening, as these names are not used to "explain", but only to classify or designate something. The first term represents hallucinations that occur when falling asleep, while the latter designates those that occur when waking up. Such names were created by the spiritualist philologist Frederic Meyers (1843 – 1901).

Before outlining a Spiritist explanation for the expanded sensitivity that occurs during sleep paralysis, it is worth reading some reports. These were taken from comments on the website www.nosleeplessnights.com (3, accessed September 2015), but similar ones can be found in specialized literature (4):
Margaux de Bokay (September 22, 2015 / 8:02 AM): Hi my name Margaux, and I just experienced a Sleep Paralysis last night. But this one was different. My past experiences of sleep paralysis, I usually find myself in company of a black entity, demon or maleficent form. It doesn’t hold me down, it just stares at me and watch me struggle to move my body or cry for help. I usually fight so hard to get the control of my body back. Try to open my eyes to really see the shape or face of the entity. Try to touch it, feel it. And after fighting that hard, convincing myself I am in control of my own body, I am finally relieved, and the entity floats away. (my emphasis)

Bailey (September 17, 2015 at 3:50 am): I have these experiences a few times over the course of a few months.They have been happening since I was young. Tonight was probably one of the scariest times I’ve had with the thing. I am 3 months pregnant, and very tired a lot of the time. I had dozed off in my bed a few hours ago and suddenly I couldn’t move, I could hear a noise in my right ear like a woman talking, but she was speaking so fast I couldn’t make out the words. She sounded wrong to me, almost evil. I knew what was going on having experienced it before; but it was still terrifying. I thought maybe I opened my eyes and saw a group of shadows on my ceiling standing around me. They were quiet other than the woman talking. I could feel my hand on my lower abdomen and instantly I was scared for my developing baby. I kept trying to focus my mind on something positive. I am not religious, but my head went to singing Jesus loves me. And suddenly the woman stopped talking and said “there is no love" and went on babbling. I was shocked and freaked out by the response. I came out of it sweating and freaked out in my dark room by myself. I really wish there was a way to stop these episodes from happening; they concern me.  (my emphasis)
Kevin A (September 9, 2015 / 11:29 PM): I have had experiences like this for around 9-10 years now. Not too frequently but still more times than i would like. Every time, i am lying in bed, just woke up randomly in the middle of the night and i can’t move at all. Depending on the time depended on which side of the bed out was on. But there is always a pitch black figure that was darker than the pitch black room, about 7 foot tall in a black robe with extremely long fingers/fingernails (can’t see details well without contacts so i don’t know which) and it’s face is even blacker, there’s nothing where it’s face is supposed to be and then it raises it’s hands and points one of its fingers at me. In one of them he had glowing red eyes and a scythe but not in the rest. In one of them i started repeating the Lord’s prayer and he/it growled at me and another demon looking thing appeared in my face before disappearing and i woke up. In another i just focused on moving so i could fight it and woke up/got released. I don’t know which side of things to believe but i believe that science and religion can be together to come to a logical explanation hopefully not involving demons/malevolent spirits. (my emphasis)

Perhaps the occurrence of sleep paralysis accounts for the abundance of descriptions of "incubi" and "succubi" in ancient literature. This idea has been investigated in several works (see [8]) and allows for the description of certain cultural myths [9]. 

Draft of a Spiritist explanation

Hallucinations cannot be explained because no modern theory still integrates consciousness perceptions with information reception by the brain - despite numerous conceptual proposals - even though correlations exist between drug influence and nervous system nonconformities (some mental illnesses). These correlations do not imply causation. However, in cases of sleep paralysis, it is unknown whether the patient is under the effects of drugs or is mentally sick. Although it affects between 3% and 6% of the population, it is a rare incident in a person's life, usually classified as an "uncontrollable" event. However, as previously indicated, simply referring to the phenomena with a specific term or complicated designation does not provide an explanation.

However, reports of a "malignant presence" are so frequent that scholars have sought to provide an explanation. One that mixes neurology and evolutionism was proposed by Cheyne [4] (see abstract):
It is argued that the sensed presence during sleep paralysis arises because of REM-related endogenous activation of a hypervigilant and biased attentive state, the normal function of which is to resolve ambiguities inherent in biologically relevant threat cues. Given the lack of disambiguating environmental cues, however, the feeling of presence persists as a protracted experience that is both numinous and ominous. This experience, in turn, shapes the elaboration and integration of the concurrent hallucinations that often take on supernatural and daemonic qualities. The sense of presence considered here is an ‘other’ that is radically different from, and hence more than a mere projection of the self. Such a numinous sense of otherness may constitute a primordial core consciousness of the animate and sentient in the world around us. (my emphasis)
Therefore, these figures are seen as "mind constructions" that work more than "mere projections of the self". In other words and in any way, according to [4] they are live hallucinations. However, this explanation does not appear to be consistent with reports of the paralyzed individual's interaction with the entity, with others describing various presences [5], or even with my own experience (in my case, I did not see any "mysterious threat" - in fact, most sleep paralysis experiences do not include these presences). Other interpretations for the thesis of the "mind that confabulates with itself" as a self-protection mechanism can be found elsewhere [7].

Some observations of the facts narrated during these experiences are:
  • They occur more frequently when waking up (only 10% occur when going asleep, they are often classified as "hypnopompic hallucinations'').
  • The incidents appear to primarily impact young adults [4].
  • The subject is not under the influence of medications.
  • The subject is not mentally ill (although as already suggested, see [4], mental disorders may be associated with some occurrences).
  • Some experiences report breathing difficulties.
  • The episodes are uncontrollable. There is no way to predict or provoke them, nor an infallible method of ending the paralysis.
  • The feeling of body control loss, hence the name "paralysis". It is vital to note that consciousness is functioning during the occurrence - it is not in a dream state - while feeling displaced or disconnected from its paralyzed body. 
  • The room or place where the person is resting is always present in the experience. This is referred to as the "realistic perception of the environment" [8]. In other words, most of what the individuals see during sleep paralysis corresponds to the sole "reality" that they believe in.
  • Some accounts (approximately 1/4 of instances, see 4) nearly always describe the presence of a malignant entity or "thing" that is watching the person in their agony to regain possession of the body.
  • A few accounts describe complete out-of-body experiences.
Spiritism (as a dualist doctrine) holds that the brain does not create consciousness, but rather serves as an interface for its manifestation. As stated by W. James (1842 - 1910) [8b], the brain is a "transmissive medium", through which consciousness flows. As a result, while physiological causes for sleep paralysis can be identified, its genesis cannot be separated from the human being's dual nature. In this way, all hallucinations, as objects tangible only to the mind, originate in the spiritual element, whether from the incarnated person who observes them (as a result of his mental activity) or from other spirit sources. Some mediumistic narratives (such as those by spirit author André Luiz) describe Spirits experiencing hallucinations, meaning that the problem does not terminate with physical death because it originates in the spirit mind, which cannot be destroyed.

"Achilles Searching for the Shade of Patrocles". Johann Heirich Füssli (1803). Source: Wikipedia.
From the Spiritist point-of-view, two main factors should be taken into account to explain sleep paralysis:
  1. The dual nature of the human being: the (biological) evolution of humans predicts experiences that begin to prepare us for a split life - between the two planes of existence (dreams being one of them). This means that sleep paralysis could be viewed as routine occurrences of "training" of the incarnated Spirit within its body. Such interconnected experiences cannot be dissociated during human existence.
  2. "Spirits are everywhere" [6b]. Many experiences of unusual presences, most of which are associated with negative sensations, are most likely created by disembodied entities (Bailey's instance recounted above may be indicative of an interaction with a disembodied person in a less happy condition).
As a consequence of these principles, some remarks are possible:
  1. Many people who experience sleep paralysis identify as agnostic or have no religious beliefs. However, during the occurrence, they ask for God's protection (or recall having asked for protection). This may indicate that the individual is in a state close to the spirit realm where he/she thinks as a spirit rather than an incarnated person. The frequent accounts that one thinks differently than when awake, even though the state of awareness is equivalent to being awake, reveals something about such dual nature of the human mind, or the frontier between the mind (spirit) and the brain.
  2. Sleep paralysis can be described as an "incomplete/partial OBE" (out-of-body experience), a threshold zone between the onset of sleep and the waking state in which typical disembodied spirit faculties operate jointly or in a disturbed manner with the sensory faculties of the incarnated state. In it, the individual begins to see or interpret the presence of spirits, which are constantly present.
  3. We do not believe that sleep paralysis implies the concomitant action of obsessions (systematic spiritual evil influence) or that it should be referred to as an obsessive process/state. Obsessions rarely limit their activity to midnight/sleep events; those who suffer from obsessions also have their daytime hours affected since the subject is always under the influence of the obsessive spirit. On the contrary, obsessed subjects may experience sleep paralysis more frequently than spiritually balanced individuals.
  4. Nonetheless, perceptions of hearing something or someone "breathing" nearby, feeling weight on the body, and so on can be attributed to the spirit's inability to link with its own body.
  5. Certain medical or psychological conditions, such as stress, depression, or trauma, facilitate the influence of ill-intentioned spirits, which is referred to as 'spirit attraction/fascination' in the Spiritist literature. The psychological state of the stressed individual mind simply attracts such discarnate spirits without more serious consequences. As a result, during sleep paralysis, these spirits may be perceived by the paralyzed, which is the cause for the link between these psychological conditions and the onset of sleep paralysis.
  6. There are several videos on YouTube with recommendations on how to get rid of sleep paralysis, but they seem suspicious to me because they ignore the spiritual character of the experiences (which makes them random) and many anomalous details. In summary: they are incomplete because they rely too heavily on "neurological explanations" or materialistic views.
How to reduce unpleasant presence during sleep paralysis.

The Spiritist explanation has one advantage: it allows us to deduce procedures that, in theory, can reduce the stress of sleep paralysis (and there are reports to support this). Given that the paralysis may be described as a "partial OBE" phenomenon, we believe that mental control and adopting a positive stance with requests for protection - which must include praying - can significantly reduce ill-intentioned influences, even if the paralysis during sleep cannot be eliminated completely (remember, it is part of Human nature). Because the individual is "awake" in the paralyzed state, he can and should request this protection. Kardec seems to have summarized this point in the following passage:
Our studies teach that the invisible world that surrounds us constantly reacts on the visible world and shows us that it is one of the forces of Nature. To know the effects of this unseen force that dominates and subjugates us despite our will would mean possessing the key to many issues, as well as answers for many ignored occurrences. If the consequences can be terrible, isn't recognizing the source of evil a way to protect ourselves from it, just as understanding the qualities of electricity gave us the ability to mitigate the disastrous effects of lightning? If we succumb, we will only be able to complain about ourselves, because ignorance is not an excuse. The risk is in the empire that bad Spirits have over people, which is not only disastrous in terms of the errors of principle that they can promote, but also in terms of material life's interests. [6]
Prayer frees oneself from oppressive influence, reduces or even eliminates the action of evil-intentioned Spirits, and serves to strengthen (positively predispose) the spirit experiencing the paralysis. We will only have an effective treatment for sleep paralysis when all of the causes (physical and spiritual) are thoroughly understood. Clearly, the spiritist contribution cannot be overlooked.

References

1 - Blom, J. D. (2009). A dictionary of hallucinations. Springer Science & Business Media.

2 - Kardec, A. See: "The book on Mediums", 2nd Part, "On spirit manifestations", Cap. VI - On visual manifestation. "Theory of hallucination ".

4 - Cheyne, J. A. (2001). The ominous numinous. Sensed presence and 'other' hallucinations. Journal of Consciousness Studies, 8(5-6), 133-150. 
5 - Terrillon, J. C., & Marques-Bonham, S. (2001). Does recurrent isolated sleep paralysis involve more than cognitive neurosciences. Journal of Scientific Exploration, 15(1), 97-123. Link (2024): ResearchGate.

6 - Original in French:
Nos études nous apprennent que le monde invisible qui nous entoure réagit constamment sur le monde visible ; elles nous le montrent comme une des puissances de la nature ; connaître les effets de cette puissance occulte qui nous domine et nous subjugue à notre insu, n'est-ce pas avoir la clef de plus d'un problème, l'explication d'une foule de faits qui passent inaperçus ? Si ces effets peuvent être funestes, connaître la cause du mal, n'est-ce pas avoir le moyen de s'en préserver, comme la connaissance des propriétés de l'électricité nous a donné le moyen d'atténuer les effets désastreux de la foudre ? Si nous succombons alors, nous ne pourrons nous en prendre qu'à nous-mêmes, car nous n'aurons pas l'ignorance pour excuse. Le danger est dans l'empire que les mauvais Esprits prennent sur les individus, et cet empire n'est pas seulement funeste au point de vue des erreurs de principes qu'ils peuvent propager, il l'est encore au point de vue des intérêts de la vie matérielle.
As found in: Kardec, A. "Revue Spirite - Journal D'Étude Psychologique". July 1859. Closing speech of the social year 1858-1859. 
6b - Kardec A. "The Medium's book". First Part - Preliminary observations, Chapter I - Are there spirits? Translated by Darrel W. Kimble and Marcia M. Saiz. 
7 - McNamara P (2011) Sleep Paralysis - when you wake up but can't move. Psychology Today. Disponível em: (acesso outubro de 2015)
8 - Adler, S. R. (2011). Sleep paralysis: Night-mares, nocebos, and the mind-body connection. Rutgers University Press.

8b - Taylor S. (2019). The Genius of William James. Link (2024): Psychology Today.

9 - Some myths and tales around the world that can be explained as caused by sleep paralysis (see [8] for more examples):
  • In Portugal, the word "pesadelo" (nightmare) might be linked to the feeling of a weight (peso) on the body caused by the inability to move during sleep paralysis.
  • The phenomenon of the pressing ghost in Hong Kong;
  • Kanashibari (金縛り) in Japan;
  • Dab Tsog (the oppressing demon) - Hmong;
  • Ogun Oru (night guerilla) in Iorubá (southwest Nigéria);
  • Ga-ui Nool-lim (가위눌림, the pressing nighmare) - Korea.