Well surely Heaven and Hell has to be subjective otherwise they are pointless as concepts.
A masochist enjoys pain (maybe not absolute torture though... but pain at least), so pain for him/her is pleasure. Hence why pleasure is subjective. And so is Heaven and Hell then.
If we are to define Heaven as "Eternal Bliss" and Hell as "Eternal torture", then since pleasure and pain are subjective, since emotions themselves are subjective, of course it's relative to the person somewhat.
A masochist enjoys pain (maybe not absolute torture though... but pain at least), so pain for him/her is pleasure. Hence why pleasure is subjective. And so is Heaven and Hell then.
If we are to define Heaven as "Eternal Bliss" and Hell as "Eternal torture", then since pleasure and pain are subjective, since emotions themselves are subjective, of course it's relative to the person somewhat.