Why is Soka Gakkai one of the fastest-growing religions in the world today? Founded in post-World War II Japan, this Buddhist movement claims upwards of 15 million members, including more than a half million in North and South America. It sponsors two universities in the United States. Professor Dobbelaere points to several reasons for its growth. Soka Gakkai emphasizes inner peace rather than rules of behavior or hierarchical allegiance. Sociologists...