
When you have a group of people "gathered together" ("In my name") there surely must be a subtle but coherent magnetic field that interacts with the physical to bring about "unexplainable phenomena". Perhaps the notion of God/gods could be explained this way.
Indo-european rune technology involves subtle magnetic fields in complex shapes, and are believed to affect the physical in "non-deterministic" ways as well. [1]
1. "Runelore" by Edred Thorsson