On May 25th, 2005, Rabbi Zalman Schachter-Shalomi, Hasidic rebbe and founder of the Jewish Renewal movement, traveledfrom Boulder, Colorado, down to the Center for Contemplative Living in Denver, Colorado, to dialogue with Father ThomasKeating, Trappist monk and one of the founders of the Centering Prayer movement, who had come from St. Benedict'sMonastery in Snowmass, Colorado. Herein is contained their sprawling and scintillating dialogue on science, mysticism, andspiritual practice.