THE THREE WAYS OF THE SPIRITUAL LIFE, Reginald Garrigou-Lagrange
CHAPTER 1 : THE LIFE OF GRACE AND THE IMPORTANCE OF THE FIRST
The necessity of the interior life.
The principle of the interior life.
The beginning of eternal life.
The importance of true conversion.
The three periods of the spiritual life.
CHAPTER 2 : THE SECOND CONVERSION: ENTRANCE INTO THE ILLUMINATIVE
The second conversion of the Apostles.
What our second conversion ought to be.
The defects which render it necessary.
The motives which must inspire the second conversion, and the fruits that derive therefrom.
CHAPTER 3 : THE THIRD CONVERSION OR TRANSFORMATION OF THE SOUL:
ENTRANCE INTO THE UNITIVE WAY
The Descent of the Holy Ghost upon the Apostles.
The effects of the descent of the Holy Ghost.
The purification of the spirit necessary for Christian perfection.
Create A Clean Heart In Me, O Lord. 
The necessity of the purification of the spirit.
How does God purify the soul in this third conversion?
PRAYER TO THE HOLY GHOST