From the left, it means that in the eyes of many parents, children are divided into two types, one is raised by mouth and the other is raised by heart. It is equally important and indispensable to be able to accompany parents to take care of their elderly parents' daily lives, to fly high, to achieve something in their careers, and to nurture their proud hearts. These two kinds of children are excellent, and they both come to repay their kindness.