Introduction to Taixu Illusion: Taixu Illusion is a famous place in "A Dream of Red Mansions". In the middle of the wall of the circular exhibition room is the "Illusion of Taixu" scene, with a circle of projection and playback equipment installed on the ceiling. Different from the digital dynamic version of "Kangxi's Southern Tour Ceremony" in the Jiangning Weaving History Exhibition Hall, the illustrations of "Dream of Red Mansions" played here rotate as a whole, giving people the illusion of a circular screen or a rotating ceiling.