Within the depth-psychology corpus, 'nightmare' occupies a remarkably dense conceptual space, spanning medical phenomenology, mythological genealogy, psychoanalytic mechanism, and archetypal theology. The most sustained treatment appears in Hillman and Roscher's Pan and the Nightmare, where the nightmare is not merely a disturbed sleep phenomenon but the living signature of Pan himself — the Arcadian deity whose suppression in Western consciousness converts numinous encounter into psychopathology. Roscher's meticulous philological and medical archaeology, annotated by Hillman's archetypal psychology, establishes that ancient physicians recognized the nightmare's cardinal symptoms — pressure on the chest, respiratory arrest, paralytic inability to move, erotic sensation, and profuse sweating — as constituting a unified clinical and daemonological complex. Against Jones's psychoanalytic reduction of the nightmare to repressed incestuous libido, Hillman argues for a mythological perspective wherein the demonic instigator precedes rather than results from intrapsychic conflict. Ogden brings a distinct object-relational register, treating the nightmare as emblematic of a broad category of psychological functioning distinguishable from night terrors. Jung links the nightmare to the figure of Lilith, connecting it to archaic matriarchal and daimonic energies. Bulkeley and Hartmann supply the contemporary neuroscientific demarcation between REM-based nightmares and NREM-based night terrors. The field's central tension is irreducible: whether the nightmare is a symptom to be dissolved or a numinous visitation demanding acknowledgment on its own terms.
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Roscher's thesis, briefly is that the nightmare demon in antiquity is the great god Pan in any of his several forms, and that the experience of the nightmare demon then was similar to that reported in the psychiatry and psychology of Roscher's own day.
This passage establishes the foundational argument of the volume: the nightmare is not a psychological symptom but a continuing encounter with the archetypal presence of Pan, verifiable across ancient and modern clinical description alike.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972thesis
The Freud/Jones hypothesis explains the nightmare intrapsychically: repressed desire returns as demonic anxiety. But Roscher opens the way for a mythological perspective: the demon instigates both the desire and the anxiety.
Hillman here articulates the central theoretical rupture between psychoanalytic mechanism and archetypal mythology in the interpretation of the nightmare, insisting the demonic is ontologically prior to intrapsychic conflict.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972thesis
Rape, panic, and nightmare belong where anxiety and sexuality are taken so concretely that the psyche has no distance from them — as rape, panic, or nightmare — when consciousness is too ethereal, ephemeral.
Hillman argues that nightmare is one of Pan's three primary irruptions into over-etherealized consciousness, each manifesting as literal, somatic concreteness that embarrasses and overwhelms the ego's capacity for metaphor.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972thesis
night terrors and nightmares, as I understand them, are emblematic of the two very broad categories of psychological functioning. Taken together, night terrors and nightmares serve both as examples of, and metaphors for, two very broad categories of psychological functioning.
Ogden elevates the nightmare beyond sleep phenomenology, treating it as a structural metaphor for distinct and opposing modes of unconscious psychological work within psychoanalytic theory.
Ogden, Thomas, This Art of Psychoanalysis: Dreaming Undreamt Dreams and Interrupted Cries, 2004thesis
Börner states that the main symptoms of the nightmare are the feeling of pressure generally brought about by lying face downward, inability to move, and anxiety. Macnish calls particular attention to the extraordinary and inexplicable anxiety of the patient.
Drawing on modern clinical witnesses, Roscher catalogues the cardinal somatic symptoms of the nightmare — pressure, paralysis, and inexplicable dread — as the empirical foundation for subsequent mythological interpretation.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972thesis
I now wish first of all to try and explain as objectively as possible the observations and experiences of modern and ancient medicine in relation to the origin and nature of the nightmare.
Roscher announces his methodological programme — to ground mythological interpretation of the nightmare in rigorously empirical medical observation from both ancient and modern sources.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972thesis
Collective apparitions are sometimes met with in the nightmare, just as in what has been called the panicky terrors and mental disorders. This means that a large number of people are attacked at the same time by the nightmare — just as in an epidemic.
Roscher documents the phenomenon of collective nightmare — entire groups afflicted simultaneously — as evidence of the nightmare's transpersonal, epidemic, and Pan-like character.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972supporting
In this classical nightmare we find once more nearly all the characteristics that were regarded as specific to the nightmare by the ancient physicians: the nightmare originated from indigestible food, there was profuse sweating, particularly on the face.
The Apuleian narrative is deployed as a literary case study confirming the coherence of ancient medical symptomology with the phenomenological structure of the archetypal nightmare.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972supporting
the goat-shaped Pans, satyrs, and fauns necessarily came to be considered as nightmare demons: because in those days goatskins or sheep skins or cloaks made of goats' hair and sheep's wool were used to protect the sleeper.
Roscher proposes a material and iconographic etymology linking the rough-haired goat form of Pan directly to the physical sensation of weight and suffocation that generates the nightmare's demonic imagery.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972supporting
nightmarish visions of vivid intensity was quite familiar to the ancient physicians. Let us compare, for example, Hippocrates: 'The evil in these fevers and cramps (contortions) from dreams,' to which Galen adds: 'We also notice in dreadful illnesses oppressions, fears, and cramps stemming from dreams.'
Hippocratic and Galenic testimony is assembled to demonstrate that the ancient medical tradition consistently associated fever, convulsion, and epilepsy with nightmare visions, establishing a clinical continuum across antiquity.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972supporting
small nightmare demons with long grey beards who glide into the room to throttle the sleeper when the moon is full: A peasant who was often plagued by them asked his neighbors for advice, and afterwards he lit a torch as soon as he noticed that the Caucie had come.
Lithuanian folklore is cited to document the cross-cultural motif that nightmare demons are vanquished by light, linking the nightmare phenomenologically to the nocturnal and chthonic domain of Pan.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972supporting
the demon of the nightmare, working only in sleep or the state preceding sleep, or the demon of fever accompanied by restless, fearful dreams (epialos, Epiales), must have had a great deal in common with Hypnos (and Oneiros) from the first.
Roscher traces the mythological kinship between the nightmare demon Ephialtes and Hypnos, establishing a divine genealogy for the phenomenon within Greek cosmology.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972supporting
Even horses and other animals are tormented by nightmares; the animals sweat profusely and snort loudly and become completely disarranged and have knotted manes, which cannot be combed out and can only be burned out with blessed candles.
Roscher extends the nightmare's domain beyond the human to animals, documenting the folklore of equine nightmare as further evidence of the phenomenon's connection to the Panic, instinctual level of existence governed by Pan.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972supporting
'When someone is plagued by the incubus, prescribe emetics and laxatives, put the patient on a light diet, purge the head by sneezing and gargling, and later rub in beaver oil and the like to prevent epilepsy.'
Rufus of Ephesus's prescription for the nightmare-as-incubus reveals the ancient medical conflation of nightmare with epilepsy and systemic toxicity, a connection Roscher uses to historicize the phenomenon's medical genealogy.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972supporting
Lilith changed into a nightmare or lamia who haunted pregnant women and kidnapped new-born infants. The parallel myth is that of the lamias, the nocturnal spectres who terrify children.
Jung connects the nightmare to the archaic feminine daimonic — Lilith and the Lamia — situating it within a mythological complex of dangerous maternal energy that persecutes the vulnerable and newly born.
Jung, Carl Gustav, Symbols of Transformation, 1952supporting
Let us take this opportunity to recall the insomnia Veneris or somni Venerei (bad dreams of Venus) that are so closely allied pathologically with nightmares. These are erotic dreams associated with gonorrhea, and the doctors in ancient times believed them to be the precursors or symptoms of epilepsy and insanity.
Roscher documents the ancient medical category of erotic nightmare as pathologically continuous with the incubus experience, cementing the link between sexuality, disease, and daimonic assault in the nightmare complex.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972supporting
dream pictures play with the half-awake consciousness, and the mind is made to believe things that do not exist in reality. Thus the forms or shapes of that fanciful world of fairy stories in which a person saw himself transfigured remain as an echo before his clouded consciousness.
The liminal state of sleep-drunkenness is identified as the psychophysiological substrate in which nightmare imagery achieves its hallucinatory conviction, blurring the boundary between dreaming and waking.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972supporting
I shall conclude this consideration of Pan-Ephialtes with its expressed objective of specifying as completely as possible the reasons why the ancient Arcadian shepherd god became a nightmare demon — by alluding to the erotic impulse.
Roscher brings his systematic argument to its conclusion, anchoring Pan's identification with the nightmare demon Ephialtes in the god's fundamentally erotic and aggressive instinctual character.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972supporting
The two most widely known words for the nightmare are epialtes and ephialtes... Phonetically both derivatives seem equally valid, but for content hallesthai is to be preferred because on the one hand hallesthai corresponds much more than iallein to the meaning of the verbs used elsewhere for the entry of the nightmare demon.
Roscher conducts a philological analysis of the Greek nomenclature for the nightmare demon, establishing that the word's etymology points toward a leaping or springing attack, consistent with the phenomenological experience of sudden nocturnal assault.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972supporting
an erotic nightmare spirit appearing in the form of a satyr. While Apollonius and his companions were staying in an Ethiopian village not far from the Nile cataracts... they suddenly heard shouting by women who called out to one another, 'Seize him and persecute him!'
Philostratus's account of a satyr-ghost harassing women is deployed as cross-cultural evidence that the erotic nightmare demon and the figure of Pan-as-satyr are mythologically continuous.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972supporting
a demon who sometimes appears as a werewolf, sometimes as a nightmare demon with the feet of a donkey or goat, with goat's ears and a hairy skin, and in many ways recalls the old Greek Pan and the satyrs who of course also appear as nightmare demons.
Roscher traces the Byzantine figure of the baboutzikarios as a polymorphous daimonic entity — werewolf, nightmare demon, Pan-satyr — demonstrating the persistence of the nightmare-Pan complex into late medieval Greek culture.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972supporting
Nightmares, however, are very different experiences from night terrors. Hartmann says nightmares tend to be long, frightening dreams occurring during REM sleep, most often during the later parts of the night, that awaken the person.
Bulkeley, following Hartmann, establishes the neurophysiological and phenomenological distinction between nightmares and night terrors, grounding the clinical differentiation in sleep-stage research.
Bulkeley, Kelly, An Introduction to the Psychology of Dreaming, 2017supporting
I have never been so terrified. I feel so helpless, but it is as if the dream is telling me that although I thought I was helpless I never knew what helplessness was until this.
Woodman presents a clinical nightmare as revelatory of the dreamer's deepest psychic crisis — the turning of her own energies against her — illustrating the nightmare's function as drastic compensatory communication from the unconscious.
Woodman, Marion, Addiction to Perfection: The Still Unravished Bride: A Psychological Study, 1982supporting
Although Roscher was a contemporary of Freud (born eleven years later in 1856), Roscher's work, like that of the other pioneers, differs in one significant way from the great psychologists, Freud and Jung, who too belong in this scholarly line by virtue of their prodigious output, scholarly method, speculative imagination.
Hillman situates Roscher's mythological scholarship in relation to Freud and Jung, noting its distinctive imaginal rather than psychological orientation as the point of productive departure for archetypal psychology's treatment of the nightmare.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972aside
Pan reveals himself in dreams to people during their midday sleep — just as here — justifies this interpretation. In Longus, all kinds of terrifying day and night visions are interpreted as 'revelations of Pan's anger with the sailors.'
An epigraphic and literary aside confirms that Pan's revelatory appearances — including terrifying visions — occur not only in nocturnal nightmares but also during the liminal midday sleep, the hour of Pan's traditional dominion.
Hillman, James; Roscher, Wilhelm Heinrich, Pan and the Nightmare, 1972aside