What is the origin of your theories and what evidence do you have to back them up? developed many theories in an effort to answer the mystery of a person’s conscious and subconscious. The evidence for these theories came through years of analysis of patients and himself. In fact many of his ideas and beliefs came from his own psychoanalysis. His invention of “psychoanalysis” ha allowed us to better understand the Oedipus Complex, dreams, and symptoms of hysteria. Certain patients of Freud would display signs and symptoms of hysteria ....