Galli

The galli were the priests of the goddess Cybele, the Great Mother, and her consort Attis, who marked their entry into the priesthood with ritual self castration, an act ancient sources describe as performed in a state of ecstatic frenzy during the cult's annual Day of Blood commemorating Attis's own self mutilation and death. Having taken this step, a gallus adopted women's dress and ornament, let his hair grow long, and lived permanently outside the ordinary categories of Greco Roman gender, a status ancient writers such as Catullus, in his poem on Attis, and Lucian both describe with a mixture of fascination and unease.

The priesthood was organised hierarchically under an Archigallus, the chief gallus of a given sanctuary, and galli were known in the ancient world for public processions in which they danced ecstatically to drums and cymbals, sometimes cutting themselves further in public displays of devotion that ancient observers found simultaneously compelling and disturbing to watch. Ancient authors also describe galli using distinctive ritual instruments, including cymbals, tympana and a double piped flute associated specifically with the cult, whose sound accompanied the ecstatic dancing that marked their public processions through Roman streets.

Rome formally imported the cult of the Magna Mater from Pessinus in Phrygia around 204 BCE, during the Second Punic War, following an oracle that promised the goddess's presence would help drive Hannibal from Italy, and the cult was given an official temple on the Palatine Hill. Rome's welcome came with a sharp limit: Roman citizens were for a long period explicitly forbidden from becoming galli themselves, so the priesthood in Rome consisted specifically of imported Phrygian priests rather than Roman converts, a restriction Roller's study of the Anatolian Cybele cult reads as evidence of genuine Roman discomfort with the practice of ritual castration even as the goddess herself was embraced as an official state cult. That restriction eased considerably under the Empire, when Roman citizens did in time join the galli, and the cult, along with its priesthood, continued in various forms until Christianisation in late antiquity brought its public practice to an end, with the empire eventually banning castration in religious contexts entirely under Christian emperors. Vermaseren's study of the Cybele and Attis cult traces this Roman ambivalence across several centuries of official policy, noting periods of tighter restriction alongside periods of comparatively greater official tolerance as the cult's standing within Roman religious life shifted.