Jia Dao and Yao He are famous "Kuyin School" poets. In the late Southern Song Dynasty, the commander's poems advocated returning to the late Tang Dynasty, mainly advocating the poetic style and artistic pursuit of Jia Dao and Yao He, with the aim of pursuing the aesthetic taste of bitter songs. However, unlike Jia and Yao, the four spirits are not obsessed with secluded new words and strange images, but use this as a means to achieve the plain and natural poetic realm they want to pursue. The commander opposed the practice of "books as poems" of Jiangxi Poetry School, and to some extent corrected the habit of Jiangxi Poetry School to learn as poems and find materials in books.