Writer revolutionary effect are Nicolaus Copernicus, who wrote "De revolutionibus orbium coelestium" (1543); Charles Darwin, who wrote "On the Origin of Species" (1859); and Sigmund Freud, who wrote "The Interpretation of Dreams" (1899). These three highly influential, and initially very controversial, works changed the way people understood their place in the world. Copernicus's heliocentric view of the cosmos displaced humans from their previously accepted place at the centre of the universe; Darwin's evolutionary theory placed humans firmly within, as opposed to above, the order of nature; and Freud's ideas about the power of the unconscious mind overcame the belief that humans
Psychoanalytic dream interpretation recreational interests, and relationships at work. Within the context of the emphasis on personal concerns, there are sometimes distortions in settings, sudden scene changes, or unusual aspects to familiar characters, but dreams are in general a reasonable simulation of the dreamer's conception of his waking reality in terms of characters, social interactions, activities and settings. Clinical observation has revealed the importance of using dream interpretation in psychotherapy. In particular, three types of gains are described as a result of dream interpretation. Insight is the first asset gained by the clinical use of dreams for both the therapist and the client.