I Ching Acupuncture Dr. Chao Chen is a living legend in the acupuncture community, and is famous for developing an application of ancient acupuncture principles based on the I Ching, which is renowned for quick and immediate results. Dr. Chen realized the Nei Jing was based on the principles of the I Ching or Book of Changes (Yi Jing). He committed himself to studying this ancient classic book and integrating its principles to the practice of acupuncture. He practiced and studied all of the traditional methods of Chinese medicine, including zang-fu; the Five Elements; the secondary vessels; zi wu liu zhu; and ling gui ba fa. Through daily meditation, study of the I Ching and his own knowledge of science and computers, Dr. Chen began to develop a system that integrated all aspects of acupuncture and I Ching theory. In 1975, Dr. Chen wrote Essence of Acupuncture Therapy as Based on Yi King and Computers, a thesis for the 1976 International Acupuncture Congress. Dr. Chen's method is based on the most fundamental principle of I Ching and Taoist philosophy: balance. In I Ching theory, balance can be found in many ways. One is revealed by the ba gua, a central element in the I Ching and Taoist arts that reflects universal principles that can be applied to Chinese medicine.