Book excerpt: This is a user-friendly and potentially life-changing introduction to the wisdom teachings of 108 of the greatest mystics in the Western tradition. McColman's premise is that we all need teachers and companions to assist us in developing rich interior lives. It celebrates the universal power and wisdom of the teachings of the mystics, highlighting the ways in which their words can help anyone find greater love, purpose and a deeper sense of God's presence. McColman organizes the mystics into nine categories: visionaries, confessors, lovers, poets, saints, heretics, wisdom keepers, soul-friends and unitives, and he covers a wide range of mystics including Martin Luther King, Hildegard of Bingen, Julian of Norwich, Dag Hammarskjold and C.S. Lewis, plus Evelyn Underhill, Simone Weil, Thomas Merton and Bede Griffiths.