So they decided heaven exists "because it is better that way" and they decided it is better that way because idiotic persistence machines desperately want to persist more.
Frankly if there is any one lesson EVERYONE needs to learn as a matter of priority... it is that reality doesn't give a flying fuck what you want. It is what it is. Not what you want it to be. Not what is convenient for you or anyone else. Not what seems most apt. Not what concludes things nicely. Reality is just a heaping mess of effectively random shit that just happened and kept happening until it ran out of energy... which is generally where it breaks down.
So no. More than anything, a notion like "heaven" needs actual rational justification AND evidence. Merely wanting it to be so is not even within a thousand miles of sufficient.
So retarded.
So anyway... they're going to find the soul-nipple in Anor Londo. Good stuff. It isn't much like it used to be since it became the Boreal Valley though.