What causes the poet's homesickness?

White clouds.

"The floating clouds travel all day long, and the wandering boy will not come for a long time." It is a common practice among poets to see the floating clouds and think of the wandering boy. The floating clouds in the sky come and go all day long, but old friends from far away are never seen for a long time. Fortunately, Li Bai was deeply in love and his soul came to visit frequently, so that the poet could talk and relieve his sorrow.

"Three nights of dreaming about you, I can see your will in person" echoes each other in the previous chapter, "An old friend comes into my dream, and I remember each other forever", reflecting the close friendship between the two. In fact, whether I see you and think of you, or remember you clearly, the poet expresses his sincere feelings for his old friend by recommending himself to others.

Original text:

Dream of Li Bai

Author Du Fu? Dynasty Tang Dynasty

The floating clouds travel all day long, and the wanderer will not arrive for a long time.

I have been dreaming of you for three nights, and I have seen you personally.

It is often awkward to return home, and the journey is hard to come by.

There are many turmoils in the rivers and lakes, and the boat may be lost.

If you scratch your head when you go out, you will lose your life ambitions.

The capital is covered with crowns, but this person is alone and haggard.

The clouds and the network are in full swing, which makes my old body tired.

Long live the name, but the loneliness will be behind you.

Translation

The clouds in the sky float here and there every day, but the old friends who have traveled far away have not returned for a long time. I see you in my dreams many times at night, which shows your deep affection for me. When we parted, you were always in a hurry, always saying how difficult it was to meet each other. Navigation on the rivers and lakes is full of dangerous winds and waves, and you are worried that your boat will be capsized and sunk. When I went out, I scratched my head full of white hair, regretting that I had failed to live up to my lifelong ambition.

The capital is crowded with dignitaries in high-end cars and elegant clothes, but you are extremely talented but look haggard. Who can say that the justice of nature does not deceive others, but innocent people are affected in their old age. Even if he has a long-lasting reputation, it is difficult to compensate for the neglect and sorrow he suffered.