Father Thomas Keating is the founder of the Centering Prayer movement, based on the retreat into the "inner room" mentioned by Jesus in Matthew 6:6, where the individual is able to meet God. From the book Manifesting God, Father Keating explains the principles of contemplative prayer - prayer as relationship, prayer in secret, and the rewards of prayer in secret.
(Tags : On Prayer (Unabridged) Thomas Keating Audiobook, Thomas Keating Audio CD )