Thich Nhat Hanh said this quote

To take good care of ourselves, we must go back and take care of the wounded child inside of us. You have to practice going back to your wounded child every day. You have to embrace him or her terderly, like a big brother or a big sister. You have to talk to him, talk to her. And you can write a letter to the Little child in you, of two or three pages, to that you recognize his or her presence, and will do everything you can to heal his or her wounds.