What are the linguistic features of Cao Cao's poems about Gui Shushou?

This is a philosophical poem written by Cao Cao in his later years, which expounds the poet's attitude towards life. The philosophy in the poem comes from the poet's real experience of life, so it is vivid and has sincere and strong emotional power; Philosophy and poetry are expressed by visualization, so the perfect combination of reason, ambition and emotion is realized in the concrete artistic image. The poem "Old horse crouching tiger" is a famous sentence that has been passed down through the ages. Their brushwork is vigorous and the rhythm is heavy, which contains a heroic spirit of self-improvement and profoundly expresses Cao Cao's vigorous and enterprising spirit. The rhyme of the whole poem is ups and downs, the first four sentences are eloquent, and the two sentences of "I still have" are calm. The next four sentences of "Lao Ji" turned into passionate tone, and the pen was thunderous, which made the image of this "domineering" hero jump from the page. And the last few sentences reveal a deep and euphemistic amorous feelings, giving people a warm feeling. The whole poem is full of ups and downs, with meticulous mechanism, shining with the light of philosophical wisdom, emitting the feeling of forging ahead and shaking the optimistic tone. The artistic style is unpretentious, noble and generous, which shows the poet's enterprising spirit of self-improvement and optimistic spirit of loving life. The length of a person's life is not entirely determined by the sky. As long as he keeps healthy physically and mentally, he can prolong his life. This shows that the poet holds a negative attitude towards fate, and his optimistic spirit of confidence in things depends on man-made, which expresses the poet's lofty ambition of not being unwilling to age, not believing in fate, struggling endlessly and never stopping pursuing great ideals.