The object of feng shui research is called qi. The ancients thought that qi was the earth gas and followed the mountain guanidine, but there must be water on both sides of the mountain guanidine. Water is the boundary gas, which means resistance. Therefore, to say that "the boundary of water stops" is not that the water stops, but that it will stop when it meets water by walking in the ground or climbing guanidine. This is an auspicious feng shui level for gathering qi, and it is also a water gathering place for gathering wind and water.
On the ground, feng shui pays attention to hiding the wind, which means that being surrounded by mountains is a good place for feng shui to prevent the collected air from being blown away by the wind. So it is said that "it was blown away by the wind", not by the wind.