Réginald Garrigou-Lagrange

According to St. Thomas Aquinas and St. John of the Cross Christian Perfection and Contemplation is an entire treatise on the operation of grace in the spiritual life that clearly and skillfully explains the great principles of the spiritual life according to St. Thomas Aquinas and other sterling Catholic Sources. In fact, the author's fascinating and extremely informative footnotes are themselves worth the price of the book.