What are the functions of these two poems, since they have not been sold?

(1) Feel the people and events of the previous dynasty from the rise of an antique. In that war, a broken halberd left behind sank into the underwater sand. More than 600 years have passed, and it has not yet disappeared. After some polishing and washing, it has been identified as a relic of Battle of Red Cliffs, which makes people feel nostalgic. ) The first two sentences are about the reasons for interest. (2) If it is changed to "the country broke the people and died here", the meaning is naturally correct, but it is not poetic at all. Observing life with thinking in images and creatively reflecting life are the life of poetry. Du Mu's unique success in the artistic treatment of this poem lies in his use of the vivid poem "Spring Copper Birds Lock Er Qiao", that is, seeing the big from the small.