First of all, "don't be discouraged before building a house" means that when your family demolishes the old house and builds a new one on the original site, the new house can't be built back, but should be built slightly forward, at least five centimeters; The front wall of a newly built house exceeds the original front wall, that is, it falls forward, which is what rural people used to call strong falling forward. Why is there such a statement? This is because rural people think that the more forward you cross, the better you must not retreat; And the new house must be taller than the old one. High, and forge ahead are the same meaning, which means that the future will be prosperous and forge ahead. Of course, it seems superstitious now, but that's because the living conditions in the past were not high, and people want to have an expectation for their future life through some outside attention.
Secondly, there is some truth in this statement. The main highlight of this old saying is that the lighting rate should be considered when building a house. As we know, China people pay attention to sitting facing south, which is the orientation of the house. Before setbacks, it is in front, and after setbacks, it means not behind. For example, in high loess slopes or mountainous areas, houses are always built on the back and slopes of mountains. Only in this way can we ensure sufficient sunshine, bright and warm houses make us live comfortably, people feel happy and do things more smoothly. If the house is built on the back, there is no sunshine for a long time, and the room is cool and humid, which is easy to breed bacteria and viruses, which will do some harm to people's health.