@cberman,
@sometime sun: Half of your questions don't make sense. But central to all of them appears to be some notion of the afterlife. In my post, I noted that I am assuming there is no afterlife. The quotes I provided also work on this sort of notion.
@Insty: Surely we must admit that heaven itself, as religiously conceived as some sort of otherworldly land, is false. But can we not learn something from the concept? Can we not work to bring a certain something about, beyond an affirmation of individualism? Don't get me wrong; I'm all for the 'glorification' of the human individual, but what are we capable of for the rest of the world?
@BMC: The Republic Pullman and Winstanley refer to in the quotes above is not an eternal confirmation (though there
are interesting studies in the world of aging), but something for the sake of the life. That everyone dies is known. Striving to make the world a 'heaven' for those who live, however, may not be 'something we cannot reach.'
Yes; we have had difficulty in the past trying to figure this out, but I certainly don't think that entails that we never will.
@Fido: Did you read my post? Heaven, not as Jesus spoke of it, or as the Bible presents it, but as something we create here.