When I was little, I thought the hymn that goes, "Hosanna in the highest heaven...' meant someone called Hosanna (because the name is like Rosanna) was a woman in heaven who is like an agony aunt who when you go to confession helps you sort out your problems!
A childhood belief about hymns

others believed things like this
- I used to believe that "Our Father, who art in heaven" meant that God was also a painter on the side. — Amanda
- I used to think Art Deco was Aunt Deco, and wondered who this famously artistic woman was meant to be.Anon
- I thought that Heaven was literally up in the sky and you could fly there in a plane— Nate
- when i was younger i thought that areoplanes drove dead people to heavenAnon
- When i was little, I used to send Jesus birthday cards on christmas and thought he would read them in heaven.Anon
- I used to believe that "critical acclaim" meant that they liked it, BUT had some major problems with it, too.— Beth