Garthwaite, Susan: - Susan Garthwaite is a spiritual director, spiritual writer, prayer group leader, and retreat facilitator in the Chicago area. For many years, she was a medical physiologist and project team leader working on new medicines for cardiovascular disease. Besides her numerous scientific papers, she has published on spiritual direction in Presence and on spirituality, especially the wisdom of women mystics, in Spiritual Life. She currently resides in Evanston, IL.