What happens when you die if you don't believe in God ?

That's up to the people who are responsible for have you cremated or laid away. You'll be at the party, but you can't verify the guest list or where they gather unless you have your final wishes in writing and somebody who will be handling the arrangements sees to it your wishes are carried out.

It's sort of like the situation where my niece got married and my brother told me she was going to be, but I was not invited because "it's not going to be in church." I wouldn't have cared, I just would to like to BE there. The next time I saw Amy, three years later, she climbed out her dad's car and hugged me, saying enthusiastically, "How ARE you? I MISSED you. I haven't seen you since the (college) graduation!" (I was invited and went.) As she got back in the car, she said brightly, "You've just GOT to come by and meet Eric (her new husband)." All I said was, "That would be nice. I've HEARD about Eric, but I never MET him."

My charming brother didn't say one word.