Sebastian P BrockSebastian P. Brock is Reader in Syriac Studies at the Oriental Institute at Oxford and is the author of The Luminous Eye: The Spiritual World Vision of Saint Ephrem (Kalamazoo, 1992). Susan Ashbrook Harvey is Associate Professor f Religious Studies at Brown University and author of Asceticism and Society in Crisis: John of Ephesus and the Lives of the Eastern Saints (California, 1990). Read More Read Less