There are two parts of Feng Shui at the gate.

This involves Lu Ban's geomantic theory ... that is, metaphysics handed down by ancient masons ... It is independent ... The gate is where people can take their wealth ... Metaphysics believes that a single overall threshold should be used to accept their wealth and enter the room ... and these two comprehensive thresholds should be used to retreat ... That is to say, the lucky god in the house goes out ... The main retreat fails ... In geomantic omen.