The spider dances her web without knowing there are flies that will get caught in it. The fly, dancing nonchalantly on a sunbeam gets caught without knowing what lies in store. But through both of them "It" dances. So, too, the archer hits the target without having aimed-more I cannot say.
I certainly felt I had an idea of World War II, and it's probably the idea that many people share: there was this insane aggressor, and there was really only one way to proceed in resisting him. What I didn't realize is that there were many voices belonging to reasonable, interesting, complicated people who had a different way of interpreting the possible responses to the Hitlerian menace.