"Writing at its best is an exalted state, an unlocking of the unconscious and imagination and a contact with sanctity." One of America's most popular Jewish writers, Chaim Potok (b. 1929) is the author of such novels as The Chosen (1967), The Promise (1969), The Book of Lights (1981), and Davita's Harp (1985). Each of his novels explores the tension between tradition and modernity, and the clash between Jewish culture and contemporary Western civilization,...