What is China's first Feng Shui classic?

Legend has it that Qingnangjing is the first geomantic scripture in history. Its original name was Qingnangjing. It is said that this book was written in the late Spring and Autumn Period and the Warring States Period and was first circulated among Taoist priests. The author's name is Huang Shigong, also known as the old man on the mountain. He was a scholar of the Qin Dynasty.

Qingnangjing is divided into three volumes. The first volume describes the combination of the orientation of the river map and Luo Shu with Yin and Yang, forming the study of heaven and earth, which is called "Hua Shi"; The middle volume tells the strength of the combination of shape, qi and direction between heaven and earth, which is called "chemical machine"; The second volume explains the orientation of the air between heaven and earth and the influence of various laws, which is called "Chenghua".

The book is only 4 10 words, which is concise and straightforward, and can be called a feng shui classic.