Ji Zi is an article in The Book of Songs Zheng Feng. The whole poem consists of three chapters, each with four sentences. Zhu's Biography of Poems thinks that it is inaccurate to describe it as "debauchery". In the Spring and Autumn Period, the ceremony broke down, and the gentlemen encouraged each other for a moment. This poem profoundly expresses the true feelings between people and is passed down by later generations. The Book of Songs is the first collection of poems in the literary history of Han Dynasty. It has had a far-reaching impact on the development of later poetry and has become the source of the realistic tradition of classical literature.