Introduction to Piaoyun: Piaoyun is one of the four great powers of psychic power. There is a saying that "the clouds on the soles of the feet are covered with clogs and teeth". The ethereal and misty clouds sometimes rise from the ravine, sometimes float on the mountainside, sometimes calm and as gentle as silk, sometimes billow up and down, the clouds and waves roll, and the peaks of the mountains flicker in the clouds and mist. The ancients said: "Clouds take mountains as their body, and mountains take clouds as their clothes." This can explain the relationship between Lingtong Mountain and clouds.