Hence we are justified in speaking of an archaic ontol-ogy, and it is only by taking this ontology into consider-ation that we can succeed in understanding… even the most extravagant be-havior on the part of the primitive world
Eliade explicitly coins and defines ‘archaic ontology’ as the belief-structure that makes primitive behavior intelligible: only participation in sacred, absolute reality constitutes genuine being, while the profane is ontologically void.
, The Myth of the Eternal Return: Cosmos and History, 1954thesis