Why are there so many love poems in The Book of Songs?

There are a large number of love poems in The Book of Songs, mainly focusing on the national style. The main purpose of these poems is to praise love, promote etiquette, guide young men and women to establish a correct view of marriage and love, and establish social marriage and love morality. In the era of The Book of Songs, marriage and love education played an important role in national education, so a large number of love-themed works appeared in Guo Feng. These poems are mostly lyrical, with the main content of expressing love and acacia for the other half, lively in form and sincere in emotion. Therefore, the love poems in The Book of Songs have become one of the precious spiritual treasures in China culture.