'Sublimation is a symbolic and largely unconscious displacement of libidinal and aggressive energy whereby largely pregenital and omnipotence components are transmuted into socially valuable and narcissistically satisfying channels.' It is a process brought about by renunciation through love of direct instinctual craving and by identification with parental love objects. Guilt is thereby reduced and a greater mastery of reality obtained. Anxiety brings about not sublimation but repressions and reaction-formations with their ill consequences for mental health. Hart therefore stresses the need for warm, mature, tolerant and original parents or parent surrogates in the development of a mentally healthy community.