In traditional geomantic omen, what is "building mountains by mountains" and what kind of cover is the best?

Before and after.

Before the point, the case is outside the mountain, which is called before; The mountain behind the cave and the top of Xuanwu is called Houzhao. It is also said that the front is illuminated and the back is covered, that is, the mountain facing in front and sitting behind.

Xie Ming refers to leaning forward and backward; The latter is called the Treasure Hall, while the former is called the Dragon House. Boucher refers to the front account and the back screen; Liu said that the special show is in front and the screen is behind; Zheng said, "The peaks are independent of the front, and the odd ones are stacked behind." All refer to this.

Zhou Donglou said that the former should be the second mountain, and the third and fifth are both. To be sharp as a pen, to be prominent as a pen, to be square as an axis, to be heavy as a brocade, is also positive and beautiful.

After the photo, Chu Feng is a blessing, but Zushan is noble and tall after the summit, or sheltered in Xuanwu outside the arm, such as a throne, such as a royal screen, such as a curtain.