@Patches,
When I was a kid I was convinced daleks had visited my house. I was lying in bed and could see them going up and down the hall at night. In the morning I somewhat nervously went to the toilet, and was relieved to find they'd gone, but no sooner had I got back to my room I heard them, they said. 'Exterminate, exterminate, exterminate, you have been attacked by the daleks.'
When people told me it must have been a dream I refused to believe it because it was so real. Even today it still feels like something that actually happened, but it can't have done, because the daleks are pure fiction.
If I'd seen Jesus going up and down the hall screaming 'Exterminate,' I might be some holy roller godbotherer now instead of being, relatively, normal.