What do you mean by looking at the wall?

It is a unique part of traditional architecture in China, especially popular in Ming Dynasty. Generally speaking, it is a shield in the gate. The ancients called it "Xiaoqiang". 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".