An overwhelming majority of symbols in dreams are sexual symbols. The dream is the liberation of the spirit from the pressure of external nature, a detachment of the soul from the fetters of matter. The interpretation of dreams is the royal road to a knowledge of the unconscious activities of the mind.
There is a psychological technique which makes it possible to interpret dreams, and … if that procedure is employed, every dream reveals itself as a psychical structure which has a meaning and which can be inserted at an assignable point in the mental activities of waking life. The study of dreams may be considered the most trustworthy method of investigating deep mental processes. Now dreams occurring in traumatic neuroses have the characteristic of repeatedly bringing the patient back into the situation of his accident, a situation from which he wakes up in another fright.