'There are no facts, only interpretations, and this is an interpretation.' Freidrich Nietzsche
I read this on the tram on the way to work (no - I wasn't reading Nietzsche but this was quoted in a book) and immediately thought about how it lined up with what I think Christianity is all about.
At the centre of Christianity is mystery and not certainty. We have the mystery of the virgin birth, the mystery of the resurrection and, centrally, the mystery of the Trinity; plus, I'm sure, a few more mysteries. If we had certainties we would have no need for faith for we would be compelled to believe but that would deny Love, as Love is never based on compulsion.
We may say we are sure of things, our salvation, the resurrection, etc, but what really mean is that our interpretation is that these are facts and that we are prepared to put our faith in them. In doing so we open ourselves up to the biggest mystery of all, that God loves each and every one of us.