Rank suggests that it is in expression of group beliefs that the idea of the soul attains its greatest power.

Otto Rank (1884-1939) was one of the most important students of Freud, especially famous for winning Freud's admiration, then for striking out independently. Among his most enduring works are Art and Artist: Creative Urge and Personality Development; Beyond Psychology; The Double; The Myth of the Birth of the Hero; The Trauma of Birth; and The Incest Theme in Literature and Legend, the last is also available from Johns Hopkins. Gregory C. Richter is an associate professor of foreign language at Truman State University. E. James Lieberman is a clinical professor of psychiatry and behavioral sciences at the George Washington University School of Medicine.