To good people, doing good things makes people feel like they’re in heaven. And the guilt associated with bad things – like Hell. Heat is generated in the body when people feel guilty, and thats probably why hell is defined as a fiery pit of the unforgiving.
All in all its a really interesting concept. Something that is bound only by what we consider heaven and hell to be. Heaven could be a large circus to someone that loves circuses. Or a tiny pond to someone that loves ponds. If it were just a place in the clouds and I had motion sickness, Id hate it. Or would entering heaven change who I am? Will it remove all fears and restrictions?