on New Year’s day that Ishtar lies with Tammuz, and the king reproduces this mythical hierogamy by consummating ritual union with the goddess … The world is regenerated each time the hierogamy is imitated
Eliade argues that the ritual hierogamy between king and goddess-representative is the paradigmatic act of cosmic regeneration, repeated annually to restore fecundity and renew time itself.
, The Myth of the Eternal Return: Cosmos and History, 1954thesis