Open Mind, Open Heart, by the Trappist Monk Thomas Keating, remains one of the best introductions to a specifically Christian form of meditation. Father Keating gives the reader an overview of what contemplative prayer both is and isn't; he discusses the history of contemplative prayer in the Christian tradition and then explores step by step the process of Centering Prayer, briefly exploring its origins in the ancient church and then demonstrating its use as 'a sign of one's intention' to surrender to God. Each chapter concludes with questions and answers that provide useful information in an informal context.