For the first time ever I went into the secret garden behind the church. It turns out that there are some memorials on the outside of the church down there with musings about the nature of time. I assume that the quiver full of arrows represents the "arrow of time". This is a good bit of physics. Unlike any other concept in physics like for example forces, which can act equally well forwards or backwards, time only goes forwards. This is now usually explained as a consequence of entropy. We are headed from order to disorder, when averaged out across the universe.