What kind of poem is Cai Wei?

Cai Wei is a four-character poem. Xiaoya Cai Wei is a poem in The Book of Songs, the first collection of poems in ancient China. This poem sings the hard life and homesickness of the soldiers in the army in the tone of returning home and guarding the soldiers. This poem consists of six chapters, each with eight sentences. The first five chapters focus on the hardships of life, strong homesickness and the reasons why soldiers can't go home for a long time, revealing that soldiers are not only willing to defend against the enemy, but also suffer greatly in the battle, showing their desire for peace; The last chapter ends the poem with a painful lyric, which is touching. This poem uses overlapping sentence patterns and figurative techniques, which embodies the artistic characteristics of The Book of Songs. The author of The Book of Songs is anonymous, and most of them cannot be verified. They were collected by Yin Jifu and edited by Confucius.