I think I'll just answer the question.
Why religion/what is religion? It's always been an explaination for things we observe but have no explaination for. People heard thunder in the sky
and sometimes it was raining and sometimes it wasn't. Since they had no idea about the physics of light and sound and weather dynamics, they said
"something is the sky causes noises."
From there, they went to the concept of a deity. As stories (usually "teaching stories" that had some sort of moral point to them) developed around
the gods, there came to be "keepers of the stories." These "keepers" were called priests.
The laws of the tribe were often taken to be given by the gods of the tribe -- and that's where the formal religion came in.
NOW -- there's another type of religious practice that goes in another direction, and that's called "shamanism."
In Shamanism, there's no formal laws and there may or may not be deities. The shaman is a mystic who contacts spirits (including ancestral spirits)
or other entities (often the avatar of a hunting animal that the tribe likes to hunt) and works with them in a "dreamtime/dream space."
Some religions (Voodoo/Vaudon/Santeria) actually incorporate shamanism into the religion, but the shamanistic practices are more for controlling an
environment or person than they are for handing down laws.