The specific performance is as follows:
1. After the hero left Dongshan, it was drizzling and foggy, and he couldn't go home for a long time.
2. The hero misses his wife at home, imagining her crying and sighing at home and missing herself.
3. The hero imagines that his house is damp, full of ground lice and cobwebs, and the environment is desolate and dilapidated, which deepens his sadness and homesickness.
The hero imagined that he came home from Dongshan and was very sad to see the desolate and dilapidated scene at home.