Some time ago I learned about the Jesus Prayer, which apparently is a transformational prayer used by Orthodox monks going back generations. It gets repeated over and over like the mantras of Eastern religion (Lord Jesus Christ, Son of God, have mercy on me, a sinner). I've been saying it daily throughout the last year, and it's brought me immense peace. That and Psalm 23 of course (always makes me ready to take on the world lol)...I enjoyed this piece.