Dream Psychology

The Interpretation of Dreams (German: Die Traumdeutung) is a book by psychoanalyst Sigmund Freud. The book introduces Freuds theory of the unconscious with respect to dream interpretation, and also first discusses what would later become the theory of the Oedipus complex.
Freud revised the book at least eight times and, in the third edition, added an extensive section which treated dream symbolism very literally, following the influence of Wilhelm Stekel. Freud said of this work, "Insight such as this falls to ones lot but once in a lifetime."
In what we may term "prescientific days" people were in no uncertainty about the interpretation of dreams. When they were recalled after awakening they were regarded as either the friendly or hostile manifestation of some higher powers, demoniacal and Divine.
With the rise of scientific thought the whole of this expressive mythology was transferred to psychology; to-day there is but a small minority among educated persons who doubt that the dream is the dreamers own psychical act.
But since the downfall of the mythological hypothesis an interpretation of the dream has been wanting.