Melodies of a New Monasticism: Bonhoeffer's Vision, Iona's Witness - Paperbackby Craig Gardiner (Author), Rowan Williams (Foreword by) The New Monastic Movement is a vibrant source of renewal for the church's life and mission. Many involved in this movement have quoted Dietrich Bonhoeffer's conviction that the church must recover ancient spiritual disciplines if it is to effectively engage "the powers that be." Melodies of a New Monasticism adopts a musical metaphor of polyphony (the combination of two or more lines of music)