One true faith

Ok kiddo, let's say you and your friend both believe in different things. You believe in Fairy Godmother and your friend believes in the Tooth Fairy.

Now some people believe that only one of these things can be true and that's called having "one true faith." They believe that only one particular religion or belief system is right and all others are wrong.

But here's the thing, it's almost impossible to prove which one is actually true! So it's important to respect other people's beliefs even if they're different from our own. Because we can all have different beliefs and still be good people who treat others nicely.