to a single obol to be paid by each initiate of the Eleusinian Mysteries to the priestess of Demeter, the symbolic value of which is perhaps to be interpreted in light of Charon's obol as the initiate's gaining access to knowledge required for successful passage to the afterlife. Erwin Rohde argued, on the basis of later folk customs, that the obol was originally a payment to the dead person himself, as a way of compensating him for the loss of property that passed to the living, or as a token substitute for the more ancient practice of consigning his property to the grave with him. In Rohde's view, the obol was later attached to the myth of the ferryman as an ex post facto explanation. In the view of Richard Seaford, the introduction of coinage to Greece and the theorizing about value it provoked was concomitant with and even contributed to the creation of Greek metaphysics. Plato criticizes common currency as "polluting", but also says that the guardians of his ideal republic should have divine gold and silver money from the gods always present in their souls. This Platonic "money in the soul" holds the promise of "divinity, homogeneity, unchanging permanence, self-sufficiency, invisibility." The coin as food or seal Attempts to explain the symbolism of the rite also must negotiate the illogical placement of the coin in the mouth. The Latin term viaticum makes sense of Charon's obol as "sustenance for the journey," and it has been suggested that coins replaced offerings of food for the dead in Roman tradition. This dichotomy of food for the living and gold for the dead is a theme in the myth of King Midas, versions of which draw on elements of the Dionysian mysteries. The Phrygian king's famous "golden touch" was a divine gift from Dionysus, but its acceptance separated him from the human world of nourishment and reproduction: both his food and his daughter were transformed by contact with him into immutable, unreciprocal gold. In some versions of the myth, Midas's hard-won insight into the meaning of life and the limitations of earthly wealth is accompanied by conversion to the cult of Dionysus. Having learned his lessons as an initiate into the mysteries, and after ritual immersion in the river Pactolus, Midas forsakes the "bogus eternity" of gold for spiritual rebirth. John Cuthbert Lawson, an early 20th-century folklorist whose approach was influenced