This book is both a translation and interpretation of Chapter 8 of the Huangdi Neijing Ling Shu, which described the ancient Chinese view of how the emotions influenced physical health. The heart was the center of a living being and the home of Spirit, and the peace and health of the heart could be compromised by human emotions. Larre's interpretation stresses the communication needed between patient and doctor to design a therapy geared specifically to each patient's authentic nature.