You have to know what I have learned from this latest book, The Heart Philosophy by Dr. Pang Ming. It changed my perspective about qi and qigong. Dr. Pang told me in person when I met him in October 2018. He told me the new book would be ready at the end of 2018. In January 2019, I got it. But it was quite a difficult one to read. You will know why in this video.