Hu feng's theory of practice.

I have read the first and second volumes of Feng Shui in Kong Xuan written by him later. He said that as the mouth of the atmosphere (the mouth of the period), the door should be based on the flying star where the door is located, and the new nine planets should be redistributed in the middle, which has the strongest effect. Kong Xuan's faction is different from the Flying Gate. After years of summary by Hu himself, this flying star is still relatively accurate!