I'm from the future to answer your question. I can't go into much detail, because it would take like forever to explain all of this to you. But, I'll try my best. Essentially, we (you and I) are all time travelers.
When you die, you simply wake up in another dimension or plane of existence. Usually, you just think it was a bad dream. But because we all exist on infinite planes of existence all the time, we never die. And because we exist on infinite levels, we can end up on any level and still feel like we've always been there.
Hope that answers your question. Well, I've got to get back. Wait until you see the video games in about 3 more years. You're gonna freak dude!