Which poem expresses helplessness and short-lived feelings, the poet can't tell all his thoughts about his hometown.

(Tang)

Seeing the autumn wind in Luoyang, I long for a writer's book.

There is no fear in the hurry, and pedestrians are coming.

"Qiu Si" is about a poet who misses home when he sees the autumn wind in Luoyang, and writes to his family, but he can't tell why. When the book was sealed, it seemed that he had said everything. But when passers-by were about to hit the road, they suddenly felt that they were in a hurry just now, for fear of missing anything important in the letter, so they hurriedly opened the envelope. The word "fear again" describes psychological nuances. Between the lines, I miss my hometown and my loved ones.