"The castle peak can't be covered, after all, it flows eastward." The Ganjiang River flows north, but this word flows east. The poet writes from the heart, so there is no need to stick to it. Numerous green hills can cover Chang 'an, but after all, they can't cover the east water. A makeover is to write about the future. If words have sustenance, it seems difficult to refer to reality. If words are not pinned, they can't cover up the second language after all, which is obviously emotional. Zhou Ji's Selected Poems of Song Sijia says, "Water complains about mountains." It can be said that it has eyes. This sentence cannot be separated from mountains and rivers. Try to appreciate three words and push away the feeling of being surrounded by green mountains. After all, the two characters are deeper and more powerful. Looking back, Qingjiang River is a metaphor for pedestrians' tears, while the river flowing eastward is a metaphor for the motherland. Numerous green hills, the poet sighed to cover Chang 'an, and said that he could not cover the East, so it was a metaphor for the enemy. In the poet's subconscious, it refers to the capitulators. The word "east flow" can be particularly appreciated. These two poems implicitly convey the poet's firm will to resist foreign enemies and recover mountains and rivers. It is now used to illustrate that the development of history is independent of human will.