We all know that separation of church and state is an important element in our system of government, and the degree of separation in some countries varies from 0% to nearly 100%. Do you have the idea that this sort of conflict is something born of advanced societies? Guess again. Take a look at what Powell had to say about the tribal politics of the Zuni peoples he encountered.
In addition to the secular government there is always a cult government. In every tribe there are Shamans . . . In many tribes, perhaps in all, the people are organized into Shamanistic societies: but that these societies are invariably recognized is not certain. The Shamans are always found.Politics and religion. Apparently you can't live with them and you can't live without them!
The purpose of the Shamanistic institutions is to control the conduct of the members of the tribe in relation to mythic personages, the mysterious beings in which the savage men believe . . . It is deemed of prime importance that such deities should be induced to act in the interest of men. Thus it is that Shamanistic government is held to be of as great importance as tribal government, and the Shamans are the peers of the chiefs . . . but always there is a conflict of authority, and there is a perpetual war between Shamanistic and civil government.