Psychoanalytic theory, a major school of thought in psychology, is referred to by a variety of synonyms. Some of the most common terms used to describe this theoretical perspective include psychoanalysis, Freudian theory, depth psychology, and psychodynamic theory. All of these terms describe a mode of therapeutic exploration that focuses on the unconscious, explores an individual's past experiences for the origins of current issues, and places emphasis on the symbolic or metaphorical nature of unconscious processes. Whether one uses the term psychoanalytic theory or any of its synonyms, this approach offers a unique and valuable perspective on human behavior and mental health.