Rational interest. The so-called rational interest refers to the philosophy of life embodied in poetic images. The cultural root of the formation of interest in reason in Song poetry is not mainly Neo-Confucianism, but the Zen machine of Buddhism.
In addition, there are two unprecedented characteristics in the two Song poetry circles, one is the emergence and formation of poetry factions, and the other is the emergence and popularity of "Poetry Talk" as a way of poetry criticism. "Poetry is based on literature", which is interesting and unprecedented.