Self-protection is a sentence used for self-protection in the Book of Songs Feng Wei. In this long poem, the author describes his marriage life with a kind and upright person, shows the marriage system and the world at that time, and expresses the poet's dissatisfaction with secular marriage and longing for pure love.

In this poem, self-protection refers to a kind and honest person, and goo goo describes his simple and honest appearance. Through this poem, the poet describes a kind and somewhat naive person. When he first met the heroine, he left a good impression. However, his married life was not satisfactory and ended in tragedy.

Most of the poems in The Book of Songs mainly express the poet's feelings, which has certain practical and social significance. In this novel, the poet criticizes the marriage system and the phenomenon that men are superior to women by describing a marriage tragedy, and expresses women's desire for independence, freedom and dignity. The language of the whole poem is concise and beautiful, which has high artistic value.

The application of The Book of Songs in ancient times;

1. The Book of Songs was used as a textbook in ancient times, especially as a compulsory course for aristocratic children. These aristocratic children improve their cultural accomplishment and moral level by studying the Book of Songs. Poetry in The Book of Songs not only has literary value, but also contains many principles of being a man, such as respecting the old and loving the young, being honest, diligent and simple.

2. The Book of Songs was used in diplomatic occasions in ancient times. Ancient diplomats often used the poems in the Book of Songs to express their views and ideas, thus avoiding many unnecessary disputes. The Book of Songs has also become a gift between different countries, showing the sincerity and affection of the giver.

The Book of Songs was also used for entertainment and social occasions in ancient times. The poems in The Book of Songs are beautiful and moving. They are catchy to read and become good companions in people's leisure time. At the same time, The Book of Songs is one of the indispensable ceremonies for people to hold weddings and sacrifices.