Across the depth-psychology corpus, ‘symptom’ occupies a position of theoretical centrality rather than peripheral nosology. Freud establishes the governing axiom: symptoms are fulfilments of unconscious wishes, placing them at the terminus of a chain of repressed libidinal energies and making their interpretation the royal road into the unconscious. Janet, approaching from a dissociative rather than libidinal framework, reads the hysterical symptom as a complex, variable sign whose surface presentation — the convulsive fit, the anesthesia, the fugue — masks underlying contractions of consciousness and failures of psychological synthesis. Bleuler, working within psychiatric phenomenology, distinguishes primary from accessory symptoms in schizophrenia, insisting that even somatic manifestations are inseparable from psychic process. Rank extends Freud by tracing neurotic physical symptoms to prenatal fixations, collapsing the psychic/organic distinction into a unified regression model. Post-Freudian voices complicate the picture further: Schwartz in IFS therapy reframes the physical symptom as a communicating ‘part’ of the psychic system, worthy of direct dialogue; Perls and the Gestalt tradition (via Yalom) argue that symptoms are chosen expressions of unfinished emotional business. Nijenhuis, working at the trauma-dissociation interface, provides empirical granularity for somatoform symptoms as dissociative phenomena. The persistent tension across these positions concerns whether the symptom is primarily a message to be decoded, a defence to be dissolved, or a voice to be heard.