Ostow develops some ideas about apocalyptic thinking, including the belief that peace and prosperity will be achieved through a great struggle between the forces of good and evil. He links it to Nazism and other forms of terrorism as well as to psychotic thinking in schizophrenia and other clinical disorders. He also discusses anti-Semitism and posits that it becomes Holocaust when it involves apocalyptic thinking in which the evil is externalized onto Jews who must then be destroyed.