Sigmund Freud was the clinician who was fascinated by the ability of the unconscious mind to influence the body. Sigmund Freud punctually set up a private practice and started handling many psychological disorders. In view of himself first and foremost a scientist rather than a doctor he tried to understand the journey of human knowledge and involvement. He industrialized the theory that humans have an unconscious in which sexual and hostile impulses are in perpetual fight for supremacy with the fortifications in inconsistency of them. In 1897 he started an concentrated examination of himself. In 1900, his major work the Interpretation of dreams was published in which he studied dreams in terms of unconscious desires and experiences.
