The depth-psychology corpus treats ‘Dream State’ not as a single, unified phenomenon but as a contested terrain whose boundaries shift according to the tradition interrogating it. Aurobindo distinguishes sharply between the dream-state of yogic Samadhi—where the subtle mind operates free of physical admixture—and the incoherent productions of ordinary sleep, positing an infinite series of depths within the former. Karl Abraham isolates a distinctly clinical subspecies: the hysterical dream-state, a waking dissociative condition in which reality becomes phantasmatic, linked etiologically to libidinal frustration and day-dreaming. Corbin, drawing on Ibn Arabi and the Imaginative Presence, dissolves the boundary between the prophetic dream-state and ordinary waking, arguing that the whole of the Prophet’s life was conducted in a mode structurally identical to dreaming. The Tibetan tradition, as Evans-Wentz presents it, treats the dream-state as one illusory layer among many, each superimposable upon another. Neurobiological voices—Solms, Bulkeley, Alcaro—map the dream state onto REM circuitry, dopaminergic activation, and limbic hyper-arousal, thereby re-naturalising what other traditions sacralise. The central tension throughout the corpus is whether the dream state is a degraded, regressive, or pathological mode of consciousness, or a privileged aperture onto psychic depths unavailable to waking reason.