In this compact book; the famous Thomist; Fr. Garrigou-Lagrange; sets forth the classic Catholic traditions on the spiritual life as the full flowering of Sanctifying Grace in the soul. He explains the three stages of the spiritual life-the Purgative Way; the Illuminative Way; and the Unitive Way-showing the transitions or conversions from one period to another. How can one become a saint without knowing the way -- the pitfalls; common mistakes; and experience of Saints who have gone before. Impr. 112 pgs; PB