What is it about Lu You's poems that has the feeling of a paradise?

Recently, I was looking through an old book and came across the poem "Dream on the Night of August 4th" by Lu You. The scenery described in it has a sense of paradise, which I deeply love. Taihua is steep and the water is long, but the white donkey is still attached to the setting sun. The medicine stove is cold in the milk cave deep in the mountain, and the flowers are fragrant in the cloud room. An old man from the neighborhood welcomes the valley entrance, and a boy with three buns bows beside the stream. The Central Plains has become the present and the past, and things outside are idle and people are busy. The towering Taihua Mountain is accompanied by the long flowing water, which can easily impress the Chinese people's landscape complex. Among the whole poem, I like the very rural sentence "The white donkey is still tied to the sunset" the most. It reminds me of the donkey tied at the entrance of the village that I saw every day when I came home from school in a neighboring village when I was a child. It is definitely not as good as Lu You. The white donkey is beautiful, not to mention the setting sun against the white donkey and the setting sun lighting up the white donkey. The scene is so beautiful. "The white donkey is still tied to the setting sun" is enough to make many people who have traveled against the odds suddenly feel homesick. "The mountain is deep in the milk cave and the medicine stove is cold, and the flowers are blooming in the cloud room and the fermented grains are fragrant in the jar." The mountains are deep and naturally quiet, far away from the disputes of the world and the entanglement of worldly affairs. What's more, the body is better, the medicine stove is cold, the flowers are blooming, and the wine is ready. , is a good time to drink and enjoy flowers. "The old man next door greeted me at the mouth of the valley, and the boy with three buns bowed by the stream." The mountains are deep and the people are not unruly. The old man next door went to the mouth of the valley to greet him. When he met three children by the stream, they stopped playing and saluted me—— What a picture of a rural scene where people are dependent on each other and enjoy themselves. "The barbarian boy with three buns bows beside the stream", the barbarian boy and the stream, I don't know why, these two images put together make me drool in fascination. Of course, Lu You is Lu You after all. "The Central Plains are transformed into the past and the present, and everything is free and people are busy." The "enjoyment" in the countryside still makes him feel a constant sense of guilt.