Phobia occupies a contested and layered position within the depth-psychology corpus, standing at the intersection of libido theory, trauma, structural dissociation, and behavioural extinction. Freud, writing in the Introductory Lectures, establishes the foundational psychoanalytic thesis: the phobia is not a response to real external danger but a representative fiction through which undischarged libido is converted into apparently objective anxiety, binding what would otherwise remain free-floating dread. Rank extends this schema, tracing specific phobias — claustrophobia, fear of railways, tunnels — back to the unconscious reproduction of birth anxiety, displacing primal mother-fear onto the father through the mechanism of the phobia. Jung, by contrast, cautions against treating phobic symptoms as straightforwardly pathological, illustrating through clinical vignettes that some phobias carry an almost oracular quality, resisting resolution for reasons that transcend the analysand’s psychology. Van der Hart introduces a decisively expanded taxonomy: trauma-related phobias of mental actions, of dissociative parts, of traumatic memories, of attachment, of intimacy, and of normal life itself, reframing phobia not as a discrete symptom but as the principal organising obstruction in the treatment of complex trauma and structural dissociation. Behavioural and neuroscientific authors — Shapiro, LeDoux — treat phobia primarily as maladaptive fear consolidated in memory networks and amenable to graduated exposure or EMDR reprocessing. The central tension across the corpus is whether phobia is best understood as symbolic displacement of libidinal conflict, as a memorial residue of overwhelming experience, or as a pervasive avoidance structure that must be systematically dismantled in phase-oriented trauma treatment.