This text presents Freud's theory that man is unable to tolerate too much reality, and that dreams are the contraband representations of the beast within man which are smuggled into awareness during sleep. The analysis of dreams is the key to unlocking the vital secrets of the unconscious mind.

Freud's discovery that the dream is the means by which the unconscious can be explored is undoubtedly the most revolutionary step forward in the entire history of psychology. Dreams, according to his theory, represent the hidden fulfillment of our unconscious wishes.