The Four Yuan Dynasties in the history of Chinese poetry regard "Yan Xie", "Li Du", "Han Liu" and "Wang Huang" as the models of the Yuan Jia, Kaiyuan, Yuan He and Yuan You poetry circles respectively.
Since the Southern Song Dynasty, Zong Tang and Zong Song have gradually become poets' koans. Chen Yan's "Three Yuan" theory is a summary of the poetry controversy between Tang and Song Dynasties in the Qing Dynasty. In fact, Chen's theory originated from Ye Xie's theory of cardinals in the Mid-Tang Dynasty. He regarded Yuanhe as one of the "three Yuans", choosing Kaiyuan as the top one and Yuanyou as the bottom. "Broken room for ears". Then Shen Zengzhi proposed the theory of "three passes", saying that "poems have three passes of Yuanyou, Yuanhe and Yuanjia", and "Kaiyuan" of Yi is "Yuanjia" and is secretly divided into Xuanyuan. Until Ma Yifu, the theories of "Three Yuans" and "Three Passes" were combined into "Four Yuans". He said: "Yuanjia has Yan and Xie, Kaiyuan has Li and Du, Yuanhe has Han and Liu, and Yuanyou has Wang, Huang. After passing through these four levels, there is nothing left to do." At this point, the "four elements" of Chinese poetry are truly highlighted. "As for poetry in the Song Dynasty, the temperament gradually faded, the voice and color expanded, and the fate of poetry turned a corner." Shen Deqian once used the key point of poetry to represent the nodes where poetry breaks through and develops. In fact, there are often complex connections between these nodes. The theoretical source of the "four elements" of Kan's poetics is to oppose judgment and emphasize origin, so the transitions are all connected by Zen. In addition, Yuanjia poetry is actually the beginning of the "Four Yuan Dynasties", so the echoes of Yuanjia poetry are always lingering in the poetry circles of Kaiyuan, Yuanhe and Yuanyou, and this return to the scene will be more concretely accepted by the typical poets. show.
Ma Yifu regards "Yan Xie", "Li Du", "Han Liu" and "Wang Huang" as the models of Yuanjia, Kaiyuan, Yuanhe and Yuanyou poetry circles respectively.