I used to be bothered about the concept of a "soul". At first I thought it was an organ, like a liver or something, but no. It's non-corporeal. (Of course, they didn't use the term "non-corporeal" when I asked about it in in elementary school.)
So then I worried that if it wasn't a physical part of me then how did it know to go where I went? I mean, could I stand up and run really fast and leave my soul behind?