David L. Schindler is the foremost American participant in the Communio movement in Catholic theology. Over the last thirty-five years, his profound theological and ontological vision has led him to probe our most urgent cultural problems to their deepest metaphysical roots, comprehensively evaluating them in the light of Trinitarian faith. The first book-length study of Schindler's thought, Being Holy in the World explores Schindler's Trinitarian theology, ecclesiology, anthropology, and metaphysics in the context of the encounter between Christianity and contemporary culture.