That is, Yin and Yang are born. Nie Gannu's "Mural": "The population is not prosperous, and several generations of people died early, and they all died of 'phlegm fire disease'. Mr. Yin and Yang said that the direction of the house and other things were not very good. "The reason." Part 1 of Chen Dengke's "Red Dragon and Danfeng": "Mr. Yin Yang said that this land has bad feng shui and is a water scoop land, and it will not make a fortune." See "Yin Yang Life".