Only the height of the mountain can set off the horizon; Only the width of the forest can match the soul. Residential high terrain is one of the most important geomantic knowledge since ancient times, and it is also one of the necessary conditions for choosing good geomantic omen. Nowadays, most cities are high-rise buildings, and the pavement with too low ground usually does not affect the high-rise geomantic omen. However, if there is strong sound source and light source pollution, this invisible suffocation will still have adverse effects on high-rise residential buildings. The disadvantage of too low ground is that it is easy to form stagnant water, which affects the circulation of gas, but if you open a shop, it should be another matter.