1. In geomantic omen, the area in front of the gate of Yang House or Yin House is the place where the earth meets the atmosphere. Daming Hall, or Waiming Hall, is located in the mountains, Zhongming Hall is located in the heart of the dragon and tiger, and Xiaoming Hall, or Neiming Hall, is located in front of the cave. Gumingtang is clean and spacious, sheltered from the wind and gathering gas. Brother Xiang wants to choose a good hall. Then point the acupoints to achieve the purpose of seeking good fortune and avoiding evil.
2. Miao Xiyong said in "The Buried Sutra Wing": "Thirdly, since the junior ancestors divided water, foreigners have always gathered outside the Dalong Lake, or merged into the outer hall since the junior ancestors, or neither. Before the foreigners crossed the Zhongmingtang, the latter part of the water flowed into the horizontal water, or the streams from the distant rivers came to the DPRK and hugged them outside the horizontal water, and on the day of their fame, the foreigners became famous."