Why does Ai Qing's poems represent an era?

1April, 938, Ai Qing returned to Wuhan from the war-torn north, and wrote a long poem "Towards the Sun" with strong and rich emotions. For more than half a century, the history of modern literature in China and literary critics unanimously praised it as an important and excellent poem in War of Resistance against Japanese Aggression period because of the author's spirit of continuous exploration of life and art and his broad aesthetic realm. Because it not only marks that Ai Qing's creative path has reached a new height, but also has a wide and far-reaching impact on the development of China's poetry creation.