What happens if you die and there is no Heaven?

Answer 1

This both makes a number of assumptions (not all religions have 'heaven'... what is your definition of 'heaven'), and depends on several unknown factors.

If a religion which doesn't have an expected heaven is correct;?

--See rules/mythology for that applicable religion.

++Example: ?Hinduism doesn't have a heaven in the same way Catholicism has a heaven. ?Some religions simply don't have a heaven at all.

If no religion is correct, but there is some form of afterlife;

--Whatever the reality of that afterlife is. ?

++Example: ?The philosophical thought experiment of a "brain in a vat", or any number of other possibilities.

If there is no afterlife;

--Nothing.

++Example: ?Similar to your situation before you were conceived. ?Non-existence.?