'You don't step into the ring with Ali because you think you can box.
The Clan is the original unit of social organization for the people of The Known World. Humanti society is becoming more diverse. The Guild or professional organization is taking the fore in the Known World. Except on the Sea.
The more you dominate your life to a god or goddess, the more you gain magical powers from him or her, but the big stuff does not come easily. Most worshippers have only the weakest of spells.