Castle: Let me guess, you were one of those annoying six-year-olds who didn't believe in Santa Claus because you figured he couldn't travel faster than the speed of light? Beckett: I was three, and we didn't have a chimney. Beckett: Why is it so important to you that I believe all this stuff about fates, psychics, and Santa Claus? Castle: Because, if you don't even believe in the possibility of magic, you will never ever find it.