- The Celtic Way of Prayer: The Recovery of the Religious Imagination (1997)
- Every Earthly Blessing: Rediscovering the Celtic Tradition (1999)
- Lost in Wonder: Rediscovering the Spiritual Art of Attentiveness (2003)
- To Pause at the Threshold: Reflections on Living on the Border (2004)
- Seeking Life: The Baptismal Invitation of the Rule of St. Benedict (2009)
- The Way of Simplicity: The Cistercian Tradition (2010)
- The White Stone: The Art of Letting Go (2021)