Often it's said, "God is mystery." People love mysteries. They're interesting, intriguing, and, well, mysterious. So religious believers, rather strangely, somehow combine an acceptance of well-defined dogmas, teachings, commandments, and such with an embrace of a Great Unknown.Mysticism, to which I'm considerably more attracted than religion, dumps the "acceptance" stuff and jumps right into the "embrace." Mystics say, I want mystery (that's why they're called mystics).So does science. The known is appealing to scientists. But it's the unknown that really gets their truth-seeking juices flowing. The central thing that differentiates my churched self from my churchless self is this: now I've…