In addition, this "Xiaoshan Ci Preface" also shows the emergence of the theory of Ci poetry sustenance in the Song Dynasty. Because the resentment in Yan Jidao's heart could not be "vomited out", he "played alone in the Yuefu, and mixed it with the poet's syntax, which was clear, strong and frustrated, and could shake people's hearts." It was precisely because the poet could not vent the depression in his heart. , and by embedding it in the lyrics, it has an artistic effect that is clear, powerful, frustrating, and heart-shaking. In addition, several literary works "Gaotang Fu", "Luo Shen Fu", "Peach Leaf Song" and "Tuanfan Poetry" that Huang Tingjian compared with Yan Jidao also have obvious sustenance in them. Among them, "He Zhe" is compared with "Gaotang" and "Luoshen". "Gaotang Fu" uses the goddess to send Song Yu's political ideals to satirize King Huai of Chu. " is the same as Qu Yuan's "Vanilla Beauty". This is the feeling of loyalty to the emperor and patriotism, so it is called "the combination". The "those below" are similar to "Peach Leaves" and "The Round Fan". "Song of Peach Leaves" and "Poem on the Round Fan" are objects of love and resentment, and their horizons are naturally not as broad as the first two, so they are "the ones below." ". From this point of view, Huang Tingjian affirmed the sustenance method in Yan Jidao's poems, and further divided it into high and low levels of main theme and artistic conception.
In summary, Huang Tingjian's "Preface to Xiaoshan Ci" is of great significance. He made a pertinent evaluation of Yan Jidao's character, which led to the evaluation of his literary works, and combined his personal experience with his Ci Ling creation Combined with this, the view of sustenance theory is put forward, and it is believed that Yan Jidao placed his lonely depression and injustice in his lyrics, marking the emergence of sustenance theory in the Song Dynasty. It can be seen from the "Preface to Xiaoshan Ci" that Yan Jidao's Ci Ling achievements were affirmed by the writers at that time, and there is no doubt that Yan Jidao's Ci Ling created a new realm of Ci Ling.