I was raised in the Catholic church, and during mass the priest would say a blessing, and make gestures over the sacremental bread and wine (turning it into the body and blood of Christ).
I believed that since he could do this, he had magical powers (like Gandalf or Merlin) and I wanted those same powers as well, so I would imitate everything he did during mass in hopes that I would also become magical.
This of course horrified my parents, who thought I was being blasphemous!
Since I could no longer follow in unison with the priest at church, I used to secretly practice at home with Kool Aid and potato chips.
A childhood belief about church

others believed things like this
- I used to think that the priest at church was JESUS.
He had a beard.... it made sense— Joe B - Since we receive bread at Mass, I thought he was called "Jesus Crust" Seemed pretty obvious!Anon
- I am Catholic. I used to believe that the Father presenting the Mass was in fact God himself.— Lindsey
- I use to believe that potato chips were made from potato bugs. — Kayla
- I used to believe the local Catholic church was Disney Land.— Sherri
- I used to think that church songs were pop music. Well, we did sing them in church every week...— Roxy