Dream
In his Interpretation of Dreams, Sigmund Freud connected them to his ideas on psychotherapy. Dreams, in Freud's view, are forms of "wish fulfillment". They are attempts by the unconscious to resolve a conflict of some sort. Because the information in the unconscious is in an unruly and often disturbing form, a "censor" in the preconscious will not allow it to pass unaltered into the conscious. Freud describes three main types of dreams: 1. Direct prophecies received in the dream; 2. The foretelling of a future event; 3. The symbolic dream, which requires interpretation.