"Mind wandering between form and spirit" was first put forward by Xiao Yunru in a short article entitled "Mind wandering between form and spirit" in the "Writing Prose" column of People's Daily in May 19 12. He said: "Comrade Shi Tuo's statement that prose should not be scattered is very incisive, but on the other hand, prose is expensive in scattered, more precisely, it is scattered in form but not in spirit." This sentence expressed a very popular literary thought at that time: the theme of a work must be focused and clear. It embodies the closed and single ideological atmosphere at that time, presents the simplification and rigidity of prose aesthetics, and well summarizes the prose creation in the 1960s, such as the prose of the prose writer Yang Shuo at that time. Because this generalization is convenient to say, and it does represent a type of prose, it has since become a defining discourse to summarize the characteristics of prose.