When I was a kid I had a book of like, “fun physics experiments for kids”. And one of them was an “experiment” where you hold an object by a string and just by focusing on the direction you wanted it to swing, it would start to move in that direction even without your input. The book of course explained that this was the ideomotor effect, a phenomenon where your thoughts can create minute, unconscious movements in your body.
Then a couple years later I got a fortune-telling kit that included a pendulum. You hold the pendulum over a piece of paper that says “yes” and “no” and ask a question, and whichever way the pendulum moves is the answer.
At which point I was like “hey WAIT a minute”, and in hindsight I think that experience explains most things about who I am as a person