Nine is one of the most important numbers to the Chinese; it represents the nine bodily openings, the nine inner chambers, and the nine heavens. The "nine times refined Golden Elixir" is a spiritual medicine that is cultivated internally through advanced Qigong called Inner alchemy or externally in an alchemist's laboratory...Nine Phases of [Qi] Cultivation and the Tenth Phase of Compassionate Expression... (p. 51)

The Three Treasures correspondences
There are three worldly domains: Earth Treasure, Life Treasure and Heaven Treasure. They find myriads of expressions, as in Body, HeartMiind and Spirit; Yin, Harmony and Yang; Lifestyle healings of Nutrition and exercise, emotional resolution, and spiritual practice/meditation; Food, Qi and Spirit; etc.

Mind and Spirit

...In Chinese, there is no discrete concept for mind, nor is there a discrete concept for heart. One single concept, Xin (pronounced "shin"), embraces both. Confused Western translators have struggled with this, often translating Xin only as "heart" or only as "mind." There is no heart and there is no mind, there is only Xin - HeartMind.

...The conditioning of life and all its traumas causes us to believe that the brain and mind are the directors of life, but when the thinking self is allowed to be integrated with the feeling self in the HeartMind, everything changes... (p. 65)

Conserving Qi
Sexual orgasm depletes Qi. Jahnke suggests that sex that stops short of orgasm builds Qi energy and, when one is used to this, is more pleasurable than orgasmic sex.

Many forms of qigong
There are many variations on the theme of qigong. An unusual one is to move intuitively, freely, allowing the flows of Qi to guide you.

This book is warmly recommended as a thoughtful and informative read.