Being raised Christian, I was always told "Jesus is in your heart". I used to believe that he was trapped inside my heart, and was banging on the walls of it to get out, and that's why my heart would beat.
A childhood belief about church

others believed things like this
- The song called heart of glass mixed me up as a kid. I heard "Heart and ass". — oops
- I used to think that when people had heart attacks someone came and stabbed their heartAnon
- I used to think that if you eat pig heart, you could grow another heart and be twice as healthier. Anon
- I used to believe an artichoke was an animal and we only ate its heart. — Laura
- I used to believe that only people that were in love had a heart.— Nikki
- i used to think that when you ate food it went into your heart not your intestinesAnon