How do parents who have lost their children live?

Parents who have lost their children all do some public welfare activities to support their lives. They think that their children must have gone to heaven, so they hope to do something good for their children and hope that their children can have an afterlife and a better family. They feel that some children are also very pitiful. They hope to do something for these children, go to the countryside to teach, and bring more children, new life and hope. It seems that these children are his own children, and it is meaningful to accompany them to grow up. Because our life is not just about having our own children, we also have ourselves, so we can do something that can realize the value of life and comfort ourselves after losing our children.