Common themes: worrying about the country and the people, cherishing the past and hurting the present, despising the powerful, being cynical, lacking talents, caring for mountains and rivers, retiring from the countryside, remembering friends and homesickness, homesickness for relatives, and staying sad and not hating. Different types of poems have different feelings, and they are eager to make contributions to their own poems. There is the passion to serve the motherland, the homesickness to express the resentment of conscripts and their wives at home, the hardships of life beyond the Great Wall and the cruelty of years of war.
The ancients often wrote poems on the theme of "for things", which was born for one reason, expressing their feelings, such as caring for relatives, seeing friends off, homesickness, giving gifts, feeling about life, and being carefree. It is a common phenomenon for the ancients to chant things and compose poems.
Poetry is used to express the pain of being unqualified and living in a lower position. Or feel angry that they can't serve the country and are not valued by power; Or show off your feelings of parting, things are different; Or his fate, loneliness and helplessness.