Harvey D. Egan, S.J., received his Doctorate of Theology under the direction of Karl Rahner from Westfälische Wilhelms-Universität and is currently Professor of Systematic and Mystical Theology at Boston College. His books include Christian Mysticism: The Future of a Tradition and An Anthology of Christian Mysticism. He is well known for his studies on Christian mysticism and on the thought of Karl Rahner.