My name is Ding Shuai. I have been frail and sick since I was a child. I accidentally met my master when I was a child. He taught me elixirs to strengthen my body and Feng Shui Taoist medicine. (This book is a summary after studying. It may be a bit confusing. You need to have your own ideas about traditional Chinese medicine. It is still recommended to go to a regular hospital for medical treatment.)