Of course the invisible purple whatsit can exist as an objest of veneration if you wish it to. That is the nature of belief. There was a group of people convinced that they would be taken up by a flying saucer in the tail of a comet...and they died together ( and probably happy) to achieve their destiny. They had total faith in the veracity of their belief. Incidentally, often if you are brought up in a belief system it is possible to break from it. Converts to a cause are usually its most passionate believers not those raised in it.

You cannot make people believe unless they cooperate, and you never really know what people relly believe in.