That's a good explanation for the idea of heaven and hell, but not for the actuality.
That's true, but it's true for everyone. You can see evidence for the wind all around you when it blows. You can record that evidence. Others can see it with you. And we have scientific explanations for what it is and what causes it.You can believe or not in oh say the "wind" for instance as you wish, it makes no difference to the wind, it will still blow upon you all the same.
But what if you were born in a glass bubble, never having experienced the wind, or rain, or any of the normal experiences of a human being. As you sit in your glass dome watching the world around you, one day you see that the trees are moving, and bushes and shrubs, and things are flying through the air. If you have no other means of determining what is causing such a disturbance it wouldn't be surprising if you decided that some unseen being was blowing those things around. After all, the only way you can feel a breeze is by blowing air through your mouth.
This is similar to how the idea of gods originated. Intelligent men and women who saw things happening in the world and didn't know how to explain them. So they invented powerful beings who did these things. And they needed to believe that these beings looked just like them, could walk among them. And they developed all kinds of stories about the world these beings lived in.
We know better now, of course. We know why the wind blows, why the lightning flashes, why the Earth trembles. We don't need gods to explain it any more. It's time we let them go.