What do you mean by the seal of Qinglong?

There are hills from the veins to the seeds. The performance of Qinglong Seal on the trip to Long Mai is colorful. The mountains produced by the extremely perfect round hills, such as Pearl Mountain, are not made in Long Mai, but the seal of Qinglong, which is often mentioned in Feng Shui. The content is for reference only, please don't be blindly superstitious.