Epopteia was the highest grade of initiation — available only to those who had already undergone the Greater Mysteries and returned a second year. The epoptai ('those who have seen') witnessed the final revelation: reportedly, the display of a cut ear of grain in silence. The most profound secret was the simplest image. Hex 30 (The Clinging, Fire) is radiance that depends on what it clings to — vision not as projection but as receptive illumination. Hex 61 (Inner Truth) is wind over lake, the truth that reaches without force because it resonates from the center. Both hexagrams describe knowing that arrives through direct seeing rather than reasoning. The Eleusinian paradox — that the ultimate revelation was a stalk of wheat — is the same insight the I-Ching encodes: the sacred is not hidden behind appearances. It is appearances, seen clearly.