He's 4 and has recently started to become more aware of dying and what it means. I've already explained that in Real Life things don't come back to life, unlike in some films like Frankenweenie, and that it means a person or an animal has gone and can't come back. He sort of gets it but this is the first time he's experienced it and I need some words that will soften the blow, especially as he's starting to understand that if animals can die so can humans (i.e. DH and I). Outwardly he doesn't show many signs of being upset or worrying about things, but his upset/ anxiety tends to come out in other ways, like dropping things into conversation a week or two later, or having night terrors and nightmares. Any advice on what kind of a burial service we can do and what we can say? Neither of us is religious - we're agnostic, but I'm aware that heaven might be a comforting idea for a 4 yo.