The Interpretation of Dreams

Dreams become evidence of hidden mental activity in Sigmund Freud's The Interpretation of Dreams. Freud presents interpretation as a psychological technique, not as a fixed dictionary of symbols, asking how images formed during sleep can disclose conflicts that waking thought does not admit directly.

At the center of the argument is wish fulfillment. In Freud's account, an unconscious impulse must pass a censor in the preconscious before it can reach awareness. Because that censor remains partly active during sleep, dream material is displaced, distorted, or compressed. His idea of condensation explains how one image may carry several associations at once, making apparently minor details important to analysis. The book also contains an early discussion of what Freud would later call the Oedipus complex.

The study combines theoretical claims with attention to individual recollection, language, and personal association. Its history reflects the gradual spread of psychoanalysis: the first printing sold slowly, but later editions and English translations by A. A. Brill and James Strachey brought the work to a wider readership. Its lasting importance lies in Freud's developing model of the unconscious and the interpretive method that made dreams central to psychoanalytic thought.