BIBLIOGRAPHY :

- R. M. FRENCH, “The Way of the Pilgrim and The Pilgrim Continues His Way”, San Francisco, 1998.

- ST. JOHN OF THE CROSS, Collected works, Washington, 1991.

- Br. LAWRENCE, The Practice of the Presence of God: The Original 17th Century Letters and Conversations of Brother Lawrence, Longwood, 2007.

- MARIE EUGENE, I want to see God, Chicago, 1953.

- G.E.H. PALMER, Writings from the Philokalia: On Prayer of the Heart, London, 1992.

- ST. THERESA OF AVILA, Autobiography, Way of Perfection, Interior Castle, London, 1946.

- ST. THERESE OF LISIEUX, Autobiography, Washington, 1996, Letters vol. I and vol. II, Washington, 1982.