The Seven Layered Shell is a metaphor for a certain social value: an individual can only form a perfect whole when finding an absolutely correct fixed position. In the Butterfly series and Ten Thousand Things, Wu Jian'an tries to break the stereotype of this individual-collective relationship: in the chaotic and crowded relationship, the individual becomes a paradoxical whole, and the vivid whole does not seem to be pre-set, but was grown from free individuals.