Psychoanalytic therapy is a form of in-depth talk therapy developed by Sigmund Freud that aims to bring unconscious thoughts and feelings to conscious awareness by analyzing dreams, using free association, and exploring repressed experiences from childhood. The therapist aims to help the patient gain insight into the unconscious causes of behaviors and symptoms by facilitating discussion of thoughts, feelings, and dreams in therapy sessions. Key techniques include free association, dream analysis, hypnosis, and helping the patient experience catharsis and abreaction to release strong emotions.