Fr. John Maria Devaney, OP is a Dominican Friar of the Province of St. Joseph currently serving in Hanover, NH at St. Dennis Parish and Aquinas House Catholic Ministry at Dartmouth College. He talks to Fr. Mark about the recent retreat that he gave to a group of Dominican Nuns based on the writings of Fr. Reginald Garrigou-Lagrange, OP, a French Dominican friar, philosopher and theologian.