Introduction to Siyun Pavilion: Siyun Pavilion was named by Zeng Guofan himself. In February of the seventh year of Xianfeng, Zeng Guofan's father passed away, and he returned home from the military service in Jiangxi. At this time, both of his parents had died. In order to commemorate his parents, he took the ancient meaning of "looking at the clouds and missing relatives" and built the Siyun Pavilion at home.