my mother was born in 50s. Although she grew up in New China, she went through a famine. At that time there was no family planning, and Grandma had nine children. Grandpa is a “family member”, and despite his poor life, uncle and aunt can still learn. But for various reasons, the mother is the only one among their brothers and sisters who has never been to school and has not read a book for a day. This is the mother’s heart knot in this life.