Cao Pi put forward the famous proposition that "Qi is the master of literature" in Dian Lun Essays. It clearly introduced the concept of "Qi" into the literary field for the first time, which had a great influence in the history of China's literary criticism. For the first time, it clearly emphasizes that the writer's personality and temperament are inseparable from literary creation, regards the writer's "qi" as the life of the article, consciously expresses personal feelings and pursues the personality of literary creation. Therefore,

"Wen is given priority to with gas, and polluted gas has a body, which is not strong enough. For example, all kinds of music, although uniform in curvature, have the same rhythm. As for uneven bleeding, it is skillful and well known. Although you are with your father and brother, you can't keep your disciples. " To put it simply, the so-called "Qi", as a writer, refers to his temperament and talent, and the modeling of his works becomes the style of his works. Specific analysis, "Qi is clear and turbid, but can't be forced", that is, it emphasizes the natural endowment of literary and artistic writers, which is inseparable from the creativity of writers, and ingenious thinking in artistic creation can't be taught because of the natural nature of creators. From this, it can be seen that the "Qi" of Cao Pi's "writing is mainly based on Qi" is no longer a simple philosophical category, but has obvious aesthetic significance.

First of all, "Qi" is introduced into the literary field as a literary aesthetic concept, so as to evaluate literary works. As early as the pre-Qin period, "Qi" was an all-encompassing philosophical category and the origin of all things in the universe. Introducing "Qi" from the philosophical category into the literary field enriches and develops the connotation of "Qi". Jian 'an literature advocates "generosity, openness and talent" and "rich outline", which is the best embodiment and interpretation of Cao Pi's theory of "literary spirit". Jian' an literati often have the concept of "qi" in their works, such as Cao Pi's Artemisia on the Wall: "Feel its heart and stir it"; "Immediately to Guangling": "Gallbladder"; Cao Zhi's "Monopterus albus" says: "Evil spirits are floating freely"; Serina Liu's Kite Shooting: "Immortal spirit"; Ruan Yu's Jing Ke Fu: "Sigh like a cloud"; Wu Zhi's "Poem of Simu": "It's just to suit one's ambition". In their works, "Qi" is mostly manifested as a high-spirited spiritual and emotional strength. Therefore, later generations often use "Qi" to evaluate Jian 'an literature. Zhong Rong's "Poetry" commented on Cao Zhi's creation: "The character is extremely high, the words are adopted by Hua Mao, the feelings are elegant and resentful, and the body is literary." Liu Xie's "Wen Xin Diao Long Time Series" said: "When you look at it, it is elegant, generous and full of grievances, and the wind is long, so the outline is rich and full of vitality."

In addition, the appearance of "Wen Qi Theory" promoted and marked the change from "expressing ambition in poetry" to "taking emotion as poetry", which indicated a person's awakening and the arrival of the era of literary consciousness. Although the "ambition" in "Poems Expressing Ambition" in Shangshu in the pre-Qin Dynasty contains the element of "emotion", it mainly expresses the thoughts and feelings in line with Confucianism, emphasizing that "emotion is bound by ambition" and emotions cannot be spread at will. The literary theory at that time could not get rid of the shackles of traditional poetics such as political enlightenment. However, the prosperity of Confucian classics in Han dynasty seriously restricted and hindered the development of literary expression of personal feelings. But we know that literature is not only "expressing ambition", but also the projection of the spiritual temperament of the creative subject. This lyrical tendency of literature led to the consciousness of creative practice after Wei and Jin Dynasties. The theory of "literary spirit" came into being in this period, which met the needs of the development of Jian 'an literature and was also the product of the social background of Jian 'an era. Liberated from the shackles of the Confucian classics tradition imprisoned since the Han Dynasty, he gradually began to pursue personal literary creation and rose to a rational level. Therefore, it makes the tendency of literary world to pursue creative individuality rise to the conscious consciousness of literati, marks the arrival of the era of "literary consciousness", and shows a bright banner for Jian 'an literature, namely "Jian 'an Style", which perfectly expresses and interprets the theoretical significance of "Wen Qi".

In a word, Mr. Li Zehou regarded Dian Lun Wen as the origin and introduction of aesthetics in Wei, Jin, Southern and Northern Dynasties. And the most important proposition is "Wen Qi". The theory of "Wen Qi" introduced "Qi" from the philosophical category into the literary field, and established the important position of "Qi" in literary activities by way of proposition for the first time. In addition, it also shows a person's awakening and the arrival of the era of literary consciousness, and pushes the development of literature to the era of aestheticism, which is also the reason why it is of great significance in the history of China's literary criticism.