Part of the beauty of PSN game Journey is the fact there's nothing to the world. There's you, another person, some flying carpets and...something else. And that's it! No back-story, no expanded universe, no codex.
Let's imagine, though, just for a moment, that Journey was indeed weighed down with things like that. With the mundane. It would...well, going by this fan art, it would be just as great, probably. The game always needed more noodles!