Extended meaning: refers to the high standards or conditions for entering a certain range.
Extended data:
Now we usually live in a building with few thresholds, but in our family, every room can be set with threshold stones, especially in dirty rooms such as kitchen and bathroom.
The threshold originally refers to the crossbar under the door. There must be a threshold at the entrance of traditional houses in China. People have to cross the threshold when entering or leaving the gate, which plays a role in buffering the pace and blocking external forces. In ancient times, the threshold was knee-high, but now it is not that high, only about one inch. In addition to being made of wood, there are long and narrow stone strips fixed on the ground between the iron gate and the gate.
Threshold is of great significance in geomantic omen. In traditional buildings in China, there is always a threshold at the entrance of the gate. Its role in geomantic omen is to prevent external unfavorable factors from entering the home and preventing brain drain.
The threshold also clearly separates the house from the outside world. At the same time, the threshold can not only prevent wind and wind, but also keep all kinds of reptiles out, so it has great practical value, and has a certain role in preventing external unfavorable factors and preventing wealth from leaking out, which is of great significance to residential feng shui.