Why "qing capsule" can become the pronoun of feng shui?

The ancient qing capsule become the pronoun of "feng shui" or "integrity" is by the people of the eastern shanhaijing summarized.Shanhaijing summarized (A.D. 273-324), the word JingChun, hedong wenxi (now shanxi), the famous scholar of the eastern, academic masters.Shanhaijing summarized is said to be Huang Shigong green bag book nine volumes, and mastered the parent of the five elements, astronomy, augury, write facies study classic "was buried in the book.This book everything heaven and earth, extensive and profound."Days with five stars, five line, talent for the stars, list of mountains and rivers, the gas line to the ground, the shape in the day, because of the shape of every gas, in the people, Chinese celestial pole".

Now come down Huang Shigong "qing capsule", is divided into 3 three volumes, the full text only 410 words.