@Historicity and pianodwarf:
I may have misexpressed myself.
Let's forget what the point of the episode is, and let's focus on how it was portrayed that a man went into a place which most, if not all, major religions describe as (more or less) heaven. In other words, a place in which you can get everything you want all the time. But he, naturally enough, was only able to enjoy it for a brief period of time before getting fed up with it, and not being able to stand it anymore.
We can see that in the episode, regardless of what the point of the episode is and regardless of other details. I mean, sure it turned out as "the other place", but that also says what I am saying. In other words, what people usually consider heaven is actually more or less hell.
So, all I am saying now is that this supports that idea of imagining heaven and thinking about it and finding out that it doesn't make sense.