Full Idea
Anthropologist distinguish three requirements for religion: a non-physical soul which can survive death; individuals who can receive supernatural inspiration; and rituals which can cause changes in the present world.
Gist of Idea
The three basic ingredients of religion are: the soul, seers or priests, and ritual
Source
Peter Watson (Ideas [2005], Ch.01)
Book Reference
Watson,Peter: 'Ideas: from fire to Freud' [Phoenix 2006], p.50
A Reaction
The latter two, of course, also imply belief in supernatural powers.