Trace the source of metaphysics.

The study of geomantic omen is well known all over the world. Da Xuan Kong Feng Shui is the most effective school of all Feng Shui schools. Its origin has a history of thousands of years. It is said that Xuan Nv gave the cipher text of Pinus densiflora in nine days, and Huang Shigong got the biography of Pinus densiflora, but the Qing Capsule Classic was circulated in Zhang Zifang. The book "Hong Ting Jing" written by the ovary was lost without any formula. After that, Ge Zhichuan kissed the immortal in Zuo Gong, and got his true story and gold.

Yang Junsong, a master of the Tang Dynasty, got the skill of Qing Capsule Sutra from the palace, and later wrote books such as Tian Yu Sutra and Du Sutra. He was once the true biography of Yang Gong, and the theory of Yin and Yang was thoroughly explained in the Preface to Qingnangjing, which is the correct formula to understand Daxuan and the authentic theory of Daxuan's enlightenment.

In the Song Dynasty, Wu Jinglian got the true biography of Chen Xiyi's "Empty City Strategy" and wrote "Empty City Strategy" and "Ode to Secret Machine". As a result, the geomantic omen in Kong Xuan has been promoted and developed to a certain extent, but the real secret technique of approaching the stars has not been made public, and the book is still in the future.

At the end of Ming Dynasty and the beginning of Qing Dynasty, Jiang Dahong (named Ke Zi Ping Jie, named Yun Yangzi, Central Zi and Du Lingfu Zi) was awarded the Great Mystery Prescription by the infinite real person, the Water Dragon Law by Wu Tianzhu, and the Yang Zhai Law by Wuyi Taoist, and he wrote Dialectics of Geography, Water Dragon Classic, Five Poems of Tianyuan, Tianyuan, and so on. Since then, Jiang Dahong is famous for his mysterious geography and is known as a fairy.