What is the meaning of Shuikou in geomantic omen?

Shuikou is an important part of geomantic omen. The so-called nozzle is the place where water flows in or out of a certain area. The place where water comes is called Tianmen, and when it comes, it is called Tianmen Open. The place where the water goes is called Luhu, and when there is no water, it is called Luhu. The source should be affectionate, not directly closed. Go to the mouth and announce that it is closed tightly, fearing that you will go straight and get nothing.

The mountains on both sides where the water flows are called Shuikousha. If there is no sand in the nozzle, water will come out directly. The sand should be carefully knotted, narrow and high-arched, with staggered fangs, gathering geese, unique peaks and mountains, and tall and straight rocks. Shaped like a flute, a beast, a tortoise and a snake, and a flag drum. It is like a fierce general, guarding chariots and horses, swords and halberds. There are countless overlapping places that detour to dozens of miles, including Luoxing, Huabiao, Hanmen, Beibiao and Guansha, which belong to the Quaker society of Shuikousha.