I used to believe that the words (in the christmas carol, "It came upon a midnight clear")
"With angels bending near the earth to touch their harps of gold"
were actually
"With angels spending near the earth to touch their hearts of gold."
Curiously I never wondered why angels should have golden hearts, but I always wondered what the angels were spending their money on.
A childhood belief about hymns

others believed things like this
- I used to believe that angels painted the sky.— Jessica
- My grandmother used to tell me that thunder was the angels bowling.— laf
- That the "glitter" in crispy snow was angels— HH
- that when it thunder'd it was angels rolling barrels around heaven.— daniel copeland calif,u.s.
- I used to think that if you stared real hard at the wind, you could see the angels.— Bradon
- I used to believe that when the sky was pink, late at the afternoon, the angels made cookies!— Bella