Why did Mr. Chen cry twice in a year in Pang Ying?

At the end of the year, Mr. Chen shed tears twice because of shame and emotion. He was afraid that the villagers would laugh at him as an empty nester. A man took the slowest train and wandered to his son's city. He didn't go out of the waiting room, covered his head and snuggled up in a cold chair, eating cold steamed bread alone and lying on his way back to the village until the fifth day. Looking at the noisy fireworks in the city, he thought of migratory birds left in the wild, wandering on him with the winter wind. Before he left, he bought a bag full of candy, and the streets were full of old and young people who had a deep reunion. Facing the wind, he wanted to cry.