Prologue 1. To begin with, the first principle from Whom all illumination descends as from the Father of Light, by Whom are given all the best and perfect gifts (James, 1:17), the eternal Father do I call upon through His Son, our Lord Jesus Christ, that by the intercession of the most holy Virgin Mary, mother of God Himself and of our Lord, Jesus Christ, and of the blessed Francis, our father and leader, He may enlighten the eyes of our mind to guide our feet into the way of that peace "which surpasses all understanding" (Eph., 1:17; Luke, 1:79; Phil., 4:7), which peace our Lord Jesus Christ...