GUO GU is a Chan teacher and founder of the Tallahassee Chan Center. Professor of Buddhist studies at the Florida State University and author of The Essence of Chan, Passing through the Gateless Barrier, and many articles, he is one of the most distinguished Chan teachers of our time. Guo Gu is one of Master Sheng Yen's senior disciples and assisted the master in leading activities at the Chan Meditation Center, Dharma Drum Retreat Center, and Dharma Drum Mountain in Taiwan, and other locations in Europe and Asia.