What is the theme of brick carving in Qiao's courtyard?

Brick carving technology can be seen everywhere, and the subject matter is very extensive. There are wall carvings, ridge carvings, screen carvings and handrail carvings. For example, there are four lions carved on the gate of a hospital, that is, four lions spit clouds. There is a large brick altar opposite the gate of the First Hospital, carved with pine trees, tung trees and nine deer riding on the stone mountain of Taihu Lake, indicating that the Nine Roads are unblocked. There is a "turtle back brocade" on the wall, which is a continuous geometric figure composed of hexagonal skeleton. It is a traditional decorative pattern, named after it looks like a turtle's back pattern. Turtle is a spirit with a long life, which is used as a pattern to show good luck and prolong life. There are many brick carvings in every yard with different themes. In addition to the meaning of longevity and good luck, there are Mei Lanzhu Ju, which symbolizes noble character.