You die - and this is why manmade religions don't work for so many of us. The notion that you're dead and that's the end, and they even try to contain you in coffins. They make them out of steel and stuff. But really, your journey - for all you know - is just beginning. For all I know, what you see now is just a tiny little seed. So, I may blossom into an entire - I don't know - something in the sky. Who knows where we're going?
And a beautiful world we live in, when it is possible, and when many other such things are possible, and not only possible, but done-- done, see you!-- under that sky there, every day.
You can't run forever. There's only so much pavement that the road makers lay down. After a while, the highway quits going north and it just turns into sky. And you can't go anywhere in the sky unless you have a plane or some kind of rocket.
Nothing so needs reforming as other people's habits. Fanatics will never learn that, though it be written in letters of gold across the sky. It is the prohibition that makes anything precious.