If we analyze it according to the habit of appreciation or from the perspective of real life, it is difficult or impossible to get a correct understanding. However, we can freely define the essence of things and make real feelings according to the external factors such as shape, color and sound, and contact the aesthetic feelings on which the subject is based, so as to get such an understanding: flowers are everywhere because of rapids; Ruthless shackles and harsh winters; The cheerful waterfalls and the mountain streams with birds singing one after another are consistent in shape, color and sound. In early spring, the flowers are still blooming, the river is not completely thawed, and the wind is still chilly. However, winter has passed and spring has come, and some of them are full of hope.
For reference.