This was the summer vacation in 1992. My mother, a middle school English teacher, took me to her mother's home, 300 miles away from the provincial capital, using her free time during the holidays.On the day I returned to the provincial capital, there seemed to be a lot of people at the long-distance bus station, and the station was small, and there was only one person responsible for maintaining order, and even the grandparents who came to see him off could not squeeze in.My mother and I were carrying large and small bags behind many people.