Thomas Ryan, csp, is a Catholic priest and member of the Paulist Fathers. He coordinates ecumenical and interreligious relations for the Paulist community in the United States and Canada. The author of twelve books, his works include Soul Fire: Accessing Your Creativity; The Sacred Art of Fasting: Preparing to Practice (both SkyLight Paths); Interreligious Prayer: A Christian Guide; Four Steps to Spiritual Freedom; and the DVD  Yoga Prayer. He lives in Washington, DC.