Mysticism and Prophecy: The Dominican Spiritual Tradition , was published in May, 1998 in London by Darton, Longman and Todd and that September by Orbis Press in New York. One of the first four volumes in the series, “Traditions of Christian Spirituality,” being edited by Philip Sheldrake, it is an account of the ways in which the “negative theology” of the early Church influenced, and was influenced by, “affirmative theology” in the teaching and lives of Thomas Aquinas, Meister Eckhart, and Catherine of Siena. Many other Dominicans (and some non-Dominicans) figure in the story. Originally, the title was Ways of Knowing and Unknowing God , but that seemed a little long. The new title captures the spirit of the Order very well, however .