4 Answers

You have to believe it.  That is called faith.

go to a Baptist church, they'll tell ya!

I was Baptist and when I came to that question I decided to study every religion and join all of them, which I am delighted to say I did. I didn’t find a religion I didn’t like. All of them have a lot to offer and some of it is a little redundant and mostly worth while. I included a generous dose of cultural oddities and behavioral patterns, all of the AA like groups and a long list of teachers and various guides. It has been great fun. I am still studying several cultural sets and I think I can get this all figured out in a few thousand more lifetimes.  

Don't worry about it, neither heaven nor hell exist. These are fictions put about by religions so they can control you.