"... the night becomes the ocean of the sun, and the old year melts in freshness." Please make a brief evaluation of this poem from two aspects: refinement and content.

The words "Sheng" and "Ru" not only make this couplet stable, but also link two unrelated things, namely "Sea Sun" and "Residual Night" and "Jiang Chun" and "Old Year", which are also vivid. The sun rises from the dark sea bit by bit, like a child leaving his mother's abdomen, and this. The word "Ru" is more vivid. Although you are still in the winter of the old year in the south of the Yangtze River, the willows by the river have been painted with a layer of spring color in spring. This word "such as" is very impolite, almost means to wedge in, and it is a new spirit. The willow color is close to the author's boat, so it is special to use the word "Jiang" before "Spring", but freshmen don't seem to care whether you like it or not, so they have to wedge hard. The word "Confucianism" is indeed unstoppable. Zhang said that he was good at promoting backwardness and was determined to reform, which may be related to his appreciation of old and new poems. This may be the reason why he said the government affairs hall.