I study religion in the university... and i think all this is a kind of manipulation to have more people in religion... as people want to believe that there will be Heaven and they want to go to Heaven. But I think you should choose religion by your heart. And probably this can even be no-judaistic (where nowadays we can see the concept of salvation and they are most widespreaded) religion just as buddhism. It's understanding of this question is kinda abstrcat imho