"Working under the guidance of Jeffrey Hopkins, Leah Zahler has here produced a definitive introduction to the Tibetan interpretation of the concentrations and formless realm absorptions. Of interest to scholars of meditation, comparative religion, mind training, and altered-states-of-consciousness, this work will productively make available to readers information that will enable them to appreciate the Tibetan articulation of these states of meditation and their overall place in the Buddhist path." —Harvey B. Aronson, PhD, author of Buddhist Practice on Western Ground and founding codirector of Dawn Mountain, Houston, Texas

"An excellent resource for anyone devoted to the study or practice of Buddhist meditation . . . highly recommended." —Wisconsin Bookwatch

"This tightly organized text is one of the broadest comprehensive elaborations of the steps, stages, and processes of the practice of meditation. . . . This book is destined for must-read status for years to come." —New Age Retailer

"This is the volume to keep on a reachable shelf in your library . . . to browse through either before or after a sitting, or to study meticulously as part of a scholarly program. . . . An excellent reference book." —Nanci Rose-Ritter