Across the depth-psychology corpus, ‘instinctive nature’ names the stratum of psychic and somatic life that precedes and exceeds conscious volition — the biological substrate from which symbolic, emotional, and spiritual expression emerge. Jung establishes the foundational tension: instinct both underlies rational behaviour and continually subverts it, producing the ‘all-or-none’ exaggerations that betray unconscious process. He insists that human behaviour is influenced by instinct ‘to a far higher degree than is generally supposed,’ and he grounds this claim in the archetype’s role as instinct’s own self-perception. Neumann carries this further, arguing that in primordial consciousness ‘perception and instinctive reaction were one,’ a fusion only dissolved by the progressive differentiation of ego. Hillman, writing from the archetypal perspective, frames the suppression of instinctive nature as a civilisational pathology: when Pan is dead, the connection between personified nature and personified instinct is severed, and the image of the devil fills the vacancy. Levine and Ogden, working from somatic and trauma-oriented positions, restore the body as the primary locus of instinctive life, insisting that the denial of animal nature produces dissociation and impedes healing. Panksepp and McGilchrist bring neuroscientific warrant to these claims, describing instincts as ‘deeply embedded drives’ that organise the dance of life across species. The shared concern is the fate of instinctive nature under the pressure of rationalisation, socialisation, and spiritual inflation.