Orphic Mysteries

What Orpheus delivered in hidden allegories, Pythagoras learned when he was initiated into the Orphic Mysteries; and Plato next received a perfect knowledge of them from the Orphean and Pythagorean writings. – Proclus

Initiation into the Eleusinian Mysteries

The perfective rite [τελετη, telete] precedes in order the initiation [μυησις, muesis], and initiation, the final apocalypse, epopteia.” – Proclus

Προηγειται γαρ, ἡ μεν τελετη της μυσεως, αυτη δε της εποπτειας.