The grades run Raven, Bridegroom, Soldier, Lion, Persian, Sun-Runner and Father, and each is paired with a planetary tutelary. The list is not a modern reconstruction. A floor mosaic in the mithraeum of Felicissimus at Ostia lays out the seven with their emblems in order, and painted inscriptions in the mithraeum under Santa Prisca in Rome name grades and the men who held them. Only the Father carried authority, and a congregation was small by necessity, since the mithraea themselves seat a few dozen at most on the benches that run along their side walls. What advancement required, and what if anything was taught at each step, is not recorded anywhere. The accounts of ordeals that circulate come from hostile or literary sources rather than from the cult. So the structure is clear and the content of it is not, and that split runs through nearly everything known about Mithraism.
Facts
Attestation
Earliest AttestationA floor mosaic in the mithraeum of Felicissimus at Ostia lays out the seven grades with their emblems in order, and painted inscriptions in the mithraeum under Santa Prisca in Rome name grades and the men who held them. 1 Status
Status Within the TraditionStandard teaching, not formally defined 1 Standing as a Comparative CategoryA standard analytic category in the study of religion 1 Origins
Held ByThe Roman cult of Mithras 1 Structure
StructureSeven grades, Raven, Bridegroom, Soldier, Lion, Persian, Sun-Runner and Father, each paired with a planetary tutelary. Only the Father carried authority, and a congregation was small by necessity. 1 Doctrinal category (class) Scholarship and Forensics
Scholarly NoteWhat advancement required, and what if anything was taught at each step, is not recorded anywhere. The accounts of ordeals that circulate come from hostile or literary sources rather than from the cult. 1 Learn More
The Ladder of Seven Gates a Christian Critic Preserved
The clearest ancient description of what the seven grades meant cosmologically comes not from a Mithraic source but from an opponent of Christianity whose work survives only because a Christian writer quoted it to refute it. Celsus, writing against the new religion in the second century, described a Mithraic diagram of a ladder with seven gates, each gate assigned a metal and a planet, lead for Saturn, tin for Venus, bronze for Jupiter, iron for Mercury, an alloy for Mars, silver for the moon and gold for the sun, through which the initiate's soul was said to climb toward the fixed stars. Origen preserved the passage inside his own rebuttal, Against Celsus, arguing the scheme was borrowed rather than original, and in doing so accidentally kept alive the one substantial ancient account connecting the seven grades documented archaeologically at Ostia and Rome to a stated cosmological purpose. The metals correspond closely to the planetary order the Felicissimus mosaic assigns each grade, which is the closest thing Mithraic studies has to independent confirmation of a written source by a physical one. What the ladder meant experientially, whether initiates understood themselves as literally ascending through the planetary spheres during ritual or read the image more figuratively, Origen's hostile source does not say and no friendly one survives to answer.
Connections
Belongs to Tradition
The grade list is attested archaeologically at Ostia and epigraphically at Santa Prisca, independently of any literary source.
Source The Roman Cult of Mithras: The God and His MysteriesManfred Clauss
Sources
1. The Roman Cult of Mithras: The God and His Mysteries
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