Unconscious material — the psychic contents that lie below or beyond the threshold of conscious awareness — occupies a foundational and contested position across the depth-psychology corpus. The Freudian baseline, consistently rehearsed and then contested by Jung, defines such material reductively: it consists primarily of repressed infantile wishes, sexual in character, rendered subliminal by the educational and moral pressures of civilization. Jung’s decisive counter-move is to demonstrate that repression alone cannot account for the totality of what remains unconscious; energy-charge, attentional threshold, and the structural depth of the collective layer all contribute. This expansion transforms unconscious material from a repository of personal residue into a dynamic field encompassing forgotten perceptions, subliminal sense-impressions, archetypal images, and compensatory counter-positions to the conscious attitude. The interpretive divergence between Freud and Jung — nowhere more sharply stated than in Jung’s own declaration in ‘Psychology and Religion’ — turns precisely on how this material is to be read: as disguised sexuality, or as symbolically significant psychic fact requiring a hermeneutic attuned to its own logic. Von Franz, Neumann, and Chodorow extend the Jungian position into alchemical projection, mythological amplification, and active imagination respectively, each treating the retrieval and integration of unconscious material as the central therapeutic and individuation task. The shared anxiety across authors concerns the dangers of either over-assimilating such material to preconceived theory or allowing it to irrupt unmediated into consciousness.