Final answer:
The exact fee required for participation in the great ritual of Demeter is not specified in the provided texts; they emphasize the ritualistic and spiritual aspects of the Eleusinian Mysteries. Indirect indications of significant expenses, such as sacrifices and official duties, imply that the initiation fee was substantial.
Step-by-step explanation:
The fee paid by those wishing to participate in the great ritual of Demeter, as was likely the case in Eleusis, cannot be deduced with precision from the provided information.
The available texts focus more on the ritualistic and mythical aspects of the Eleusinian Mysteries and associated ceremonies, such as the ritual duties performed by the prospective initiates and the spiritual beliefs underlying these practices.
For instance, the Homeric Hymn to Demeter is key to understanding the mythological foundation, and the sacrifices and processions give insight into the ritualistic expressions of the worship of Demeter and Persephone. However, the material does not specify the exact monetary value of the fee required for initiation.
It is known that the prospective initiates, who can be seen as 'pilgrims', had to undergo sacrifices and participate in processions as part of their initiation. The involvement of various officials and the performance of such activities, which were not free, suggest that the fee was a significant amount, contributing to the exclusivity of the mystery rites.
The importance of sacrifices, as well as the dedication of officials and priestesses in the religious observances, highlights the significance and potential expense of participating in these sacred events.