Have you watched Andrew Garfield talking about losing his mum on Sesame Street? Give it a watch, may help?
I told my son that his nanny is up in heaven and she can see him and looks after him. She is a star at night too. Watching Up helped my son understand heaven x
My son thinks of it like sometimes people are not well enough to be on earth so they pass away and go to heaven but they feel a lot better up there, he told me he thinks they get a rocket up there and that’s how they become an angel in heaven but we see them as stars x
I would try and explain in a nice way that he’s in a a better place and is happy where he is, may ease her upset a little ❤️🩹x