Death, revisited

We were driving home from gymnastics and Luke heard on NPR that Solzhenitsyn died at 89 and was buried today.

Luke: Do people live to be 99?
Me: People can live to be very old.
Luke: Like 1000?
Me: No, like 100, because our bodies aren't made to live to be 1000.
Luke: What about 104?
Me: Your Great Great Grandma lived to be 103.
Luke: When did she die?
Me: Almost 20 years ago.
Luke: Oh, I really liked her. What part of you goes to heaven, again?
Me: Your soul.
Luke: So her soul went at heaven. What happened to her body?
Me: We put it in a box called a coffin and buried it, then put a special stone above it to show that we loved her.
Luke: Does dirt get in the box?
Me: No, the box keeps it out.
Luke: Can we dig up the box?
Me: Why would we do that?
Luke: So I can see her so I can remember what she looked like.

It was SOOOOO hard not to laugh through this conversation!