The first thing I said to my firstborn son when he looked me straight in the eyes was "I got you".
I still say it, when he's scared, overwhelmed, frustrated, bruised, sad; I pick him up, hold him tight, walk around slowly and tell him the same thing, I got you. Once my little girl started talking she'd repeat what I said and say "I ga choo", it sounded so sweet and at the same time so strong. As tiny as she was, I trusted her when she said it.
Thus now I'm telling you, if you need to feel seen, safe and understood, AIGACHU.