As a part of Wang Guowei's theory of "realm", Wang Guowei also put forward the views of "separation" and "non-separation" in "The Thorn on Earth", arguing that literary works with "realm" should be "non-separation".
The so-called "Buge" means that the language is fresh and simple, the image is vivid and vivid, with natural and true beauty, and there is no trace of artificial carving. On the contrary, "isolation" refers to the lack of plain natural beauty in language carving, intensive use of allusions and meticulous decoration.
The thought of "Bouguer" has absorbed the influence of western aesthetic thoughts that attach importance to artistic intuition, and at the same time, it has been influenced by China's ancient aesthetic thoughts of literature and art, such as Zhong Rong's "seeking directly", Si Kongtu's "reaching directly", Yan Yu's "wonderful understanding", Wang Fuzhi's "present quantity" and Wang Tutuo's "verve", which are in the same strain.