Preface: What attracted Merton to Sufism / Seyyed Hossein Nasr -- Dramatis personae -- Introduction: Sufism: name and reality / William C. Chittick -- Merton's reflections on Sufism / Burton B. Thurston -- Thomas Merton's interest in Islam: the example of Dhikr / Bonnie Thurston -- Merton, Massignon, and the challenge of Islam / Sidney H. Griffith -- A treatise on the heart / Muhammad ibn 'Ali al-Hakîm al-Tirmidhî, translated by Nicholas Heer -- Islamic themes in Merton's poetry / Erlinda G. Paguio -- "As one spiritual man to another": the Merton-Abdul Aziz correspondence / Sidney H. Griffith --Merton's Sufi lectures to Cistercian novices, 1966-68 / Bernadette Dieker -- Thomas Merton and a Sufi saint / Gray Henry -- The visit of Sidi Abdeslam to Gethsemani / Nicole Abadie [Khadidja Benaissa] -- Merton, Marco Pallis and the Traditionalists / Rob Baker -- Final integration: toward a "Monastic Therapy" / Thomas Merton