- The Music of Time: Words and Music and Spiritual Friendship (1996)
- The Mystic Road of Love (1999)
- Love's Mind: An Essay on Contemplative Life (2000)
- Reading the Gospel (2000)
- The Road of the Heart's Desire: An Essay on the Cycles of Story and Song (2002)
- A Journey with God in Time: A Spiritual Quest (2003)
- Deep Rhythm and the Riddle of Eternal Life (2003)
- The Circle Dance of Time (2010)
- Eternal Consciousness (2012)
- Dark Life of Love (2013)