What sacrifice did initiates make to get into the mystery cult of Demeter?

Initiates seeking entry into the mystery cult of Demeter, particularly the Eleusinian Mysteries, typically made significant personal sacrifices, including the offering of grain or other agricultural produce to honor the goddess. They also underwent a period of purification, which often involved rituals such as fasting and abstaining from certain behaviors. This process symbolized a personal commitment to the mysteries and the cycle of life and death associated with Demeter and her daughter Persephone. Ultimately, the sacrifices reflected both a physical and spiritual readiness to partake in the transformative experiences offered by the cult.