Alexander Golitzin is professor emeritus of patristics at Marquette University and a bishop of the Orthodox Church in America. A specialist in the origins of Eastern Christian ascetical and mystical tradition, he is the author of" 'Et introibo ad altare Dei' The Mystagogy of Dionysius Areopagita" (Thessaloniki, 1994); "Saint Symeon the New Theologian on the Mystical Life: The Ethical Discourses, " 3 vols.(Saint Vladimir's Seminary Press, 1995-97); and "New Light from the Holy Mountain" (Saint Tikhon's Seminary Press, 1996), as well as several studies collected in "The Theophaneia School: Jewis...