From the perspective of ancient geomantic omen, this "Big Dipper"-shaped S-shaped burial style can best "gather qi". Wang Xiuling said that ancient science was underdeveloped, and the ancients had a mysterious feeling about celestial bodies, believing that the Big Dipper could ward off evil spirits. For example, at the Yangshao Cultural Site in Shui Bo, West Henan Province, 6,000 years ago, it was found that the owner of the tomb had carved the astronomical pictures of Dragon Tiger and Beidou on the east and west sides and at the foot. The ancients also carved it on the sword to ward off evil spirits. The mystery is that the shape of the Big Dipper is just a huge S-shaped gas aggregate.