depth psychology, psychoanalysis, analysis - a set of techniques for exploring underlying motives and a method of treating various mental disorders; based on the theories of Sigmund Freud; "his physician recommended psychoanalysis"

adolescence - the time period between the beginning of puberty and adulthood

stage, phase - any distinct time period in a sequence of events; "we are in a transitional stage in which many former ideas must be revised or rejected"