Whatever we believe but don't understand becomes religion. Therefore, whether God exists or not is simply a matter of belief. And if one believes that God exists, then one wants to know what he looks like. The religion used for this study was catholicism, since this is the most common religion in Luxembourg, as proved by the tax money sunk into it year after year. But it could have been any other religion.
Catholic religion is as bad or as good as any other.
You can live by the ten commandements even if you don't trust the Pope. In other words, you can believe in God even if you disagree with his idea of what God looks like. You want to get a picture in your mind of who a certain person is. Apparently yes, because whenever you ask a churchperson who God is, you get either a completely befuddled answer or you're given a picture that shows somebody looking like the older brother of Santa Claus. And this is where we have to start.