its purpose is to explain the religious implication of the ritual dismemberment of the bull-god at the Bacchic nocturnal festivals, and to derive that feature from the legendary sufferings of Dionysos-Zagreus
Rohde identifies the aetiological function of the Orphic Zagreus myth as the doctrinal heart of Orphism, linking ritual practice to cosmological narrative.
, Psyche: The Cult of Souls and the Belief in Immortality among the Greeks, 1894thesis