The baby sleeps, and the mother feels that the scientific explanation.

Legend has it that children have just come to this world and know nothing. There is a magical old woman who is responsible for teaching children how to accept everything in this world and what is happy and sad when sleeping. If you learn well or learn quickly, you will be praised, and children will giggle in their sleep. Otherwise, you will be punished and the child will cry. "Dancing" is to teach how to use limbs and let children know their "full functions" in a short time. And frown for a while and pout for a while, that's because they are thinking. And because all this can only be done in children's sleep and dreams, it is called "grandma's sleep".

I have a daughter of my own. When I was born, I dreamed, laughing and crying in my dreams. But how can such a small baby dream without memory? Is it related to past lives? It's scary to think about it. ...