Why should we pay attention to "mountains surrounded by water" in Feng Shui?

From the perspective of geomantic omen, the first principle of good geomantic omen is "surrounded by mountains and water on all sides". In other words, there are mountains behind to rely on, so that people can flourish; Surrounded by water ahead, to prosper. Xuanwu Square in geomantic omen is the back of the house, which is the place with the back of the mountain. So the position of the backer is also called Xuanwu. If the position of the backer is not good, the headmaster will sue the thief for robbery. Because Xuanwu star is a dark god, there are more abnormal peach blossoms. Feng shui takes the front as the direction, in charge of wealth, and sits behind the mountain, in charge of people. Therefore, it is very important for the house to rely on the mountain. There is a real mountain behind the house. Beautiful mountains and rivers, Hua Mao vegetation, meaning that people living here are smart, delicate, beautiful and dignified. "Water hug" is also very important, accounting for a large part of geomantic omen, especially in plain areas without "mountain ring". "Shui Long Jing" said: "The dragon falls flat and the ocean is like a pavilion. The flat ocean only takes water as the dragon, and the surrounding water is the anchorage of the dragon. Therefore, anyone who looks for dragons will look for water and ask for it. " That is to say, if a mountain called dragon in geomantic omen disappears on the plain, it should be based on water, and a good atmosphere is displayed in the winding place.