This translation of Father Reginald Garrigou-Lagrange's synthesis of the spiritual life...the. three Ages in detail. (3 part sections to read)
The Three Ages of the Interior Life
About this Site
This site is an online book.
The book is summary of a course in ascetical and mystical theology given for over twenty years by Reginald Garrigou Lagrange, OP at the Angelicum in Rome.
In other words, this book describes in detail the path to the highest union with God possible in this life according to Catholic theology.