About the last two sentences in Liu Zongyuan's "The Fisherman"

The fisherman

Liu Zongyuan

The fisherman stayed near the west rock at night, and at dawn he drank the clear water and burned the bamboos of Chu

The cigarettes were sold out and no one was seen at sunrise. , Alas, it sounds like the mountains and rivers are green.

Looking back at the middle stream under the sky, the unintentional clouds are chasing each other on the rocks.

If the author did not add the last two sentences when he created it, we would not feel that there is anything missing. Since he added it, I think there must be a reason why he added it. That is what the author has thought about. Reading poetry It is to read the author's mind, what he thought at the time, and we have no reason to modify it for the sake of appreciation.