Book excerpt: The Wheel of Great Compassion is the first book to provide Western readers with a complete understanding of the prayer wheel--an ancient and mystical practice that has long been popular with Buddhists throughout Tibet and Mongolia for its ability to bless the environment, promote healing, increase compassion, and assist practitioners on their journeys to enlightenment. This book offers a clear description of prayer wheel practice, its meaning and benefits, and its role as an essential ritual and symbol of Tibetan Buddhism. It contains a general introduction to the prayer wheel, photographs and illustrations, six commentaries by Tibetan lamas (including Lama Zopa Rinpoche), and instructions for both prayer wheel construction and proper use.