Hello, where is Long Mai mentioned in ancient geomantic omen? What is it like?

Hello, first of all, let's talk about Long Mai. In geomantic omen, the name of dragon is used to represent the trend, ups and downs, turning points and changes of mountains. Because dragons are good at changing, they can be big and small, they can bend and stretch, they can hide and show, they can fly and dive. The mountains are changeable like dragons, so they are called dragons. There is also Long Mai in the flat land, which is marked by micro-topography and water flow. As far as China is concerned, Long Mai in China originates from Kunlun Mountain in the northwest, and three Long Mai extend to the southeast. Beilong entered Shanxi from Yinshan Mountain and Helan Mountain, starting from Taiyuan and ending at crossing the sea. Zhonglong entered the customs from Minshan and entered the sea from Qinshan. Nanlong entered the sea from Yunnan-Guizhou and Hunan to Fujian and Zhejiang. Every big Long Mai has dry dragons, branch dragons, real dragons, fake dragons, flying dragons, hidden dragons, flash dragons and feng shui surveys. First of all, we must find out the background and conform to the direction of Long Mai.

(3) Long Mai: 1, the root dragon originates from the vein: it is a vast area north of the Yellow River. 2. Long Mai: South of the Yellow River and north of the Yangtze River. 3. Looking for the dragon and the pulse: it is a vast area south of the Yangtze River. These three dry dragons originated in the northwest and headed southeast. China has formed a terrain that is high in the northwest and low in the southeast, "the sky is smaller than the northwest and the ground is smaller than the southeast".