A collection of lectures given by Master Ham-King Koo from 1988 to 1997 and transcribed by The Society for Nanlaoshu. The texts describe methods for the cultivation of physical health, healthy mind, and longevity. These selections represent a wide range of practices and principles of meditation, Taijiquan movement, breathing, energy transformation, and understanding the heart/mind intention. The Society for Nanlaoshu was founded in 1987 under the inspiration and guidance of Master Ham King Koo. Born in China in 1905, he devoted his life to acquiring and sharing his knowledge of internal cultivation techniques. The Society for Nanlaoshu is dedicated to preserving and sharing this ancient art of longevity practice.