It often happens that the original precepts of a taoist concept are lost in translation -- these ideas are difficult for Chinese, even before introducing the myriad difficulties of translating between two very different languages (Chinese and English). Sometimes when this happens, the gentle spirit is preserved, if still diluted. Meaning is lost, or mixed into a debased and generalized new age concept of Eastern religion/philosophies. This is harmless enough. But sometimes what gets lost in the translation is the vigilant care and gentleness that is central to the taoist practices. The yin gets lost, superceded by the Buddhist yang, which can transform many of the healthful practices of the taoist tradition into dangerous and degenerative practices. I must say, with some regret, that the author of this book finds himself in this position. Much of the information in this book is extremely valuable, particularly that which is concerned with diet and digestive health, if one is careful to know where the author strays from the path. Where he strays, especially in regards to sexual practices and colon cleansing, his advice becomes unhealthful. The obsessive fixation on the sexual organs and lower bowels, and skimpy material on physical exercises, betrays a lack of dedication to the true tao. If you are really interested in practicing tao, I suggest you start with tai chi chuan or chi gung. Chi gung is the most fundamental part of following tao. Find a teacher that is well-versed in an authentic taoist chi gung tradition. It may take a little effort to find one, but they are around.