Death Anxiety

V in my bed this am as soon as his eyes opened: Do you die when your heart stops beating?

Me: Yes. That is what happens.

V; Like in 15 years? Who will be my mom when you die?

Me: No, in so many years when I am really old and you are already old. I am still your mother when I die.

V: I want you to stop and stay how you are now like I am going to do.