William C. Chittick is Professor of Comparative Studies at State University of New York, Stony Brook. He has published numerous books, among them, Imaginal Worlds: Ibn al-Arabi and the Problem of Religious Diversity; Faith and Practice of Islam: Three Thirteenth-Century Sufi Texts; The Sufi Path of Knowledge: Ibn al-Arabi's Metaphysics of Imagination; The Sufi Path of Love: The Spiritual Teachings of Rumi; and A Shi'ite Anthology, all published by SUNY Press.