In the past, people thought that ghosts would visit their houses constantly and build a wall to block the path of ghosts. Another view is that Zhaobi is a unique architectural form in China influenced by Feng Shui consciousness, which is called "shadow wall" or "shadow wall". Feng shui pays attention to guiding qi, and qi can't go straight into the hall or bedroom, otherwise it will be unlucky. The way to avoid air rush is to put a wall in front of the house. In order to keep the "air unobstructed", this wall can't be closed, so the architectural form of facing the wall is formed.
The display wall has the function of preventing wind and blocking the line of sight. If the wall is decorated, it will have the effect of scenery.
It is a necessary way to deal with quadrangles, a classic architectural form in China.
Eight-character walls, as the name implies, are two walls shaped like eight characters, which are the two sides of the culvert entrance and exit. An ancient building should be two splayed walls at the entrance of an ancient mansion or yamen. Generally, slogans or couplets are written on them, such as justice and honesty.