The incest complex occupies a peculiarly contested position in the depth-psychology corpus, functioning simultaneously as clinical diagnostic category, mythological motif, and metaphysical symbol. Freud established the foundational claim: infantile libido directed toward the parent of the opposite sex generates a conflict whose management — or mismanagement — determines the architecture of neurosis. For Freud, the incest complex is essentially literal in its psychosexual content, however disguised in symptom or fantasy. Jung accepted the clinical reality while radically recontextualizing its meaning: in his reading, the libido involved is not primarily sexual but psychic energy that must be redirected from familial objects toward the symbolic realm — religion, culture, individuation itself. The incest taboo, on this view, serves an evolutionary-spiritual function, forcing libido outward and upward. Samuels, following Stein and Layard, further develops this position: the taboo is as natural as the impulse, and symbolic incest — the endogamous tendency toward psychological internalization — must be recognized as a genuine instinct in service of regeneration. Hillman pushes further still, locating incest archetypal in the imagination prior to any biological or sociological framing, insisting it must be encountered in its mythic register before any purposive interpretation is imposed. The tension between literal and symbolic readings, between pathological fixation and transformative potential, defines the term’s richest theoretical territory.