These have never been seen in the usual sense of seeing and yet we know they are there based on traces of activitity and presence. Now science can t look at everything. So it looks at certain samples and comes to tentative conclusions. Its formulas and laws are signs. Like maps, they point to reality but are not reality.
Religion can t look at everything either.
So it looks at certain samples and comes to tentative conclusions. The readings for this Sunday provide us with two examples, two provocative stories. As the story goes he was on the road to Damascus carrying warrants from the court when suddenly a flash of light knocked him to the ground. Hunting down certain persons in order to persecute, imprison, or murder them. There s a few things to chew on.