1. E.g., the Apostle Paul, St. Augustine, St. Francis, Tolstoy, John Wesley, etc. See Underwood, Alfred C.,Conversion: Christian and Non-Christian (New York, Macmillan, 1925) for a comprehensive historical survey.
2. Clark, Elmer T.,The Psychology of Religious Awakening. New York, Macmillan, 1929, and more recently in Allport, Gordon W.,The Individual and His Religion. New York, Macmillan, 1950.
3. Freedman, Daniel X., ?Perspectives on the Use and Abuse of Psychedelic Drugs.? In Efron, Daniel H., et al., eds.,Ethnopharmacologic Search for Psychoactive Drugs. Washington, D. C., Public Health Service Publication No. 1645, 1967, pp. 77?102; also Aberle, David F.,The Peyote Religion among the Navabo. Chicago, Aldine Publishing Co., 1966.
4. Malcolm X.,The Autobiography of Malcolm X. New York, Grove Press, 1965; also Draper, Edgar,Psychiatry and Pastoral Care. Englewood Cliffs, N.J., Prentice-Hall, 1965, p. 21.
5. Wallace, Anthony F. C., ?Revitalization Movements,?American Anthropologist, 1956, 58, 264.