The gate faces east and southeast.
A house facing south is originally a Yang house, and the gate facing east or southeast is Zhengyang.
It is opened in the southeast as the dragon's mouth. Geologists believe that if the dragon opens its mouth, it is very auspicious. Feng shui principles for the location of the courtyard gate: In "Eight Houses in Mirror" it is said: There is no good or bad luck in the house, but the doorway is the good or bad luck. " In "Thirty Chapters on Debate", it is said: "The most important door of Yangzhai is the vent of breath!" Zhang Zongdao said: "The door of the house is the vent of breath. ”