Why do you say Zhou Zuoren's; Is it symbolic poetry?

Zhou Zuoren's River is a free poem that completely breaks away from the rhythm of old poetry, and it is a masterpiece of poetry liberation, which has a great influence on the development of new poetry later. His River was praised by Hu Shi as "the first masterpiece of new poetry", and it is a figurative poem that "scenery and emotion, emotion and reason are integrated". It has two meanings: by describing the threat to the creatures on both sides of the strait caused by dike construction, it advocates conforming to the laws of nature, maintaining ecological balance and respecting people, and violating the laws of nature will be punished by nature; The profound meaning is: compare the "river" to the people's feelings, and borrow the old saying that "people are still water, and water can carry a boat and also overturn it." If the river is not guided correctly, it will be flooded. In the poem, it is written that a river flows steadily forward, and farmers will build weirs to stop it. "You can't go forward, but you can't go back. The water just turns in front of the weir, followed by the troubles and worries of mulberry trees and rice seedlings. " It shows the poet's ideological contradiction at that time: he not only demanded to break the feudal net and realize the liberation of personality, but also worried that the mass movement was unstoppable and went too far. In terms of artistic expression, The River adopts symbolic and anthropomorphic techniques, and completely gets rid of the old shackles in form and pursues the natural rhythm.