The more I’ve read about hell and its description, the more i believe that people (who will remember what they have done while alive - reference Lazarus and the Rich man) will be tormented not by anything physical, but mentally. By what they have done, what they have rejected, what they turned their back on and wanted no part of. Making it all the worse is knowing they could have accepted it but didn’t, and now it’s too late, and they are confronted with this reality and there is no second chance. They will see they were given multiple oportunities and remember all the chances they had, they cannot complain they only got one chance. God has given them what they actually wanted, existence without Him. For these people heaven would be cruel punishment, it would be hell. To be in a place you spent your whole life not preparing for, despising the kinds of things believers will do in Heaven, wanting to be in God’s presence and thanking Him, that would be torture to these folks. But so will be getting what they wanted. Eternal separation from God.