Bats are homophonic to "Bian Fu", which means blessings come from heaven and are everywhere. Bats are also often reflected in the design of ancient Chinese architecture. The Prince Gong Mansion in Beijing was originally the residence of Heshen. The corridors and windows are decorated with bats. It is said that there are 9,999 bats in total, which means long-lasting good fortune. There are many bats flying on the door, which means that the bats are coming to the door, happiness is endless, and fortune is prosperous.