What does a building with an underground hall say from the perspective of geomantic omen?

There is an underground hall. You should first consider whether the environment is noisy. If it is too noisy and not quiet enough, you will be very uncomfortable living there. From a substantive point of view, your body and mind will be affected, which is an arrow in the geomantic terminology. It is also said that the golden cabinet has no bottom, or it can be said that it is ungrounded. This is only because different feng shui masters have different opinions. First of all, you have to bear the disadvantages brought by the external environment. For example, there is a lot of noise under the aisle, and the safety factors are uncertain, so we can't afford to buy this kind of room. Speaking of ungrounded gas. The usual solution is to bury the layout in front of the floor at the intersection of the halls, and make a nine-square grid with a side length of 60 cm and a grid length of 20 cm in each grid with 4 ancient copper coins and 36 * * *. Ancient money such as Qianlong and Shunzhi should be used to ensure peace.