Delineates the background and basic principles of Islam and discusses the centrality of the oneness of God and the 5 pillars of faith. Psychological benefits resulting from ablution, praying, fasting, alms giving, and pilgrimage to Mecca are noted. Psychological aspects in Islamic daily life are described, including care for the family, divorce and polygamy, concern for the welfare of parents and the aged, and concern for learning and work. Prevention against psychological illness, such as depression and suicide, sexual perversions, crime, and racial discrimination are also discussed. By following Islamic principles, it is believed that Muslims can achieve and enjoy the 4 ingredients of a healthy and balanced life: Physical, social, mental, and spiritual health.