Underworld Psychology designates the most distinctive and philosophically ambitious strand of James Hillman’s archetypal project: the sustained effort to reorient depth psychology away from ego-centered, developmental, and vitalistic frameworks toward what Hillman calls the ‘psychic perspective’—a mode of consciousness modelled on Hades and the classical underworld of shades. The Underworld, in this reading, is not a metaphor for the unconscious in any familiar sense, but a full ontological claim: that the soul’s native motion is downward, toward death, image, and essence rather than toward growth, integration, or cure. Hillman’s central text, The Dream and the Underworld (1979), elaborates this position against Freudian and Jungian ego-psychology alike, arguing that dreams are autochthonous communications of underworld being, not messages to be translated upward into dayworld utility. The Hades-Pluto figure becomes the telos of every soul process; Persephone, Hermes, Hecate, and Thanatos are its presiding intelligences. Major tensions within the corpus include the boundary between underground vitality (Dionysian, erotic, somatic) and underworld essence (imaginal, static, non-redemptive), the clash between chthonic polytheism and Christian eschatology, and the question of whether depth psychology inadvertently performs religion’s function—connecting the living with death—without acknowledging it. Patricia Berry extends the problematic into phenomenology of image; Neumann reads the underworld through the Terrible Mother archetype. The term stands at the intersection of soul-making, dream hermeneutics, and the critique of therapeutic ameliorism.