The analogy, or rather identity, of this rite with the death and resurrection of Pelops can hardly leave a doubt that the Feast of Tantalus was in essence a ceremony of New Birth, of mock death and resurrection, and also, in some sense, of Initiation.
Harrison argues that the myth of Pelops’s dismemberment and restoration is structurally identical to archaic initiation rites of death and rebirth, making the Feast of Tantalus a ritual prototype rather than a mythological curiosity.
, Themis: A Study of the Social Origins of Greek Religion, 1912thesis