Kong Xuan Feng Shui master in Song Dynasty, is the main reason of Feng Shui mountain or qi?

Feng shui masters in the Tang and Song Dynasties saw that mountains dominated Feng Shui. Later, in the Yuan and Ming Dynasties, people began to talk about the application of numerology theory to geomantic omen, but in general, mountains were the mainstay, supplemented by qi. Even Jiang Dahong, the originator of metaphysics, said that to see Feng Shui, look at Longzhen Cave first, and then use flying stars to chisel. Pity this Feng Shui master who is studying Kong Xuan. He can sit at home and watch Feng Shui. I'm just fooling myself.