In these lectures Father Zacharias unfolds the major contours of the theology of the great contemporary elders St. Silouan the Athonite and Archimandrite Sophrony, given to our generation by our man-loving and gracious God. This edifying lecture series was originally delivered at the invitation of His Grace, Bishop Basil of the Diocese of Wichita and Mid-America of the Antiochian Orthodox Christian Archdiocese of North America, at the Diocese's 2001 Clergy Brotherhood Retreat, and is published here with the blessing of the author.