Qinyuanchun-Changsha has a couplet "the eagle strikes the sky, the fish fly to the bottom", in which the two verbs "strike" and "fly" are refined and very expressive. Some language teachers and researchers have interpreted the phrase "the fish flies to the bottom of the sea" in this way: the sky is reflected in the water, and the fish swimming in the river are just like they are really in the sky, so they use the word "Xiang". Such an interpretation is contrary to the facts and is in fact an incidental interpretation.

On the water clarity, and even the rapids in the swimming fish mood, the former have described:

"The big river is clear and turbid streams, its water ten feet to see the bottom, see the fish swimming as if riding in the air. Shallow places more colorful stones." (Jin - Yuan Song "Yidu Ji")

"The water is all misty blue, and the bottom is a thousand feet. Fish swim in the water and the stones are fine, so there is no obstacle to seeing straight." (Southern Dynasty - Wu Jun, "Book with Zhu Yuan Si")

"Below the small pool, the water is especially fresh and clean. The whole stone as the bottom ...... of the pool fish can be a hundred or so head, all if the empty swim without dependence. Sunlight down through, shadow cloth stone." (Liu Zongyuan "small stone pool record")

These descriptions are not written in the sky reflection in the water, but on the contrary, only write the water of the bottom of the water, write the clear water in the body of swimming fish can be clearly seen, and even the shadow of the fish can be seen in the water on the stone, so realistic descriptions show that the human eye in this kind of water can not be seen in the reflection of the sky.

"Fish flying in the shallow bottom" sentence with the above description of both the same, but also a breakthrough, innovation. These descriptions are all about the clarity of the water and the mood of the swimming fish. Yuan, Liu have written to the fish "swim" without support, as if the "air", this description, stay in the feeling state, or visual concepts, without too much imagination component, are to respond to the clear water has been accounted for, Wu Jun's description is more straightforward: "Swimming fishes and fine stones, straight and unobstructed." Comrade Mao Zedong, with his deep classical literary training, could not have been uninspired by the potential of these descriptions, but more in the breakthrough and innovation. Yuan and Wu wrote that the water was "ten zhangs" and "a thousand zhangs", while Mao Zedong wrote that "the river was blue", and since it was already blue, the bottom of ten zhangs and a thousand zhangs could naturally be called "shallow". The bottom of ten or a thousand zhangs of water can naturally be called "shallow bottom", implicitly writing the water is clear, and the real and the imaginary are intertwined. Yuan, Liu wrote fish "swimming", is the actual writing, Mao Zedong wrote fish "flying", virtual in the real. The logic of the phrase "the fish soars to the bottom of the sea" is that the fish swims in the clear water without any dependence, just like a bird flying freely in the sky. In order to satisfy the strict limitations of the word pattern, and to emphasize the refinement of the words and the aestheticization of the imagery, the author will be the logic of thought through the almost intuitive simile, the body and the metaphor of the tightening of the "fish fly to the bottom of the sea" has become a stroke of genius. From this, we can see that "Fish Flying Shallow Bottom" is an imagery concept built on the visual concept, and it is the generation of the author's subjective imagination. It doesn't have to and can't have a reflection of the sky as an imaginary background. The verb "Xiang" is the most appropriate comparison of the performance of the water swimming fish free and easy mood, reflecting the author's love of the natural landscape, the charm of the whole, is another good example of poetic refining words.