In large, complex societies such as ours, there are many religions, many allegiances. Here, religion and society differ sharply. Sometimes the strictures of a religion command adherents to attack their own society as the fount of wickedness. Deliberately fostering such religions is hardly in any society's best interest. They see the world of experience as inchoate and our first necessity as making sense of it.
Humans explain new, unknown events by what is known.
Because powerful humanlike beings are causing the disturbances. The campfires of the gods. This early form of vitalism led people to attribute spirits to other people, to animals, plants, and even inanimate objects. These people filled their world with human thought and insight. Later, the spirits were magnified in power imaginatively by their people until they became gods.