Conversation with Colton

In this book the main character, Colton goes through a out of body experience where he visits heaven and sees all the things that go on there. If i were to have a conversation with him i would ask him questions about what it was like and what all goes on. A specific question i would ask him is, if he saw my grandparents there. I would also like to ask more about what Jesus looked like. It explains what he looks like a little bit in the book but not too in depth. What questions would you ask someone who has seen heaven?