Dionysusis the twice-born son of *Zeus and Semele. His birth alone sets him apart. Snatched prematurely from the womb of his dying mother and carried to term by his father, he was born from the paternal thigh. Perceived as both man and animal, male and effeminate, youthful as well as mature, he is the most versatile and elusive of all Greek gods. His myths and cults are often violent and bizarre, a threat to the established social order. He represents an enchanted world filled with extraordinary experiences. Always on the move, he is the most epiphanic god, riding felines, sailing the sea, and even wearing wings. His most common cult name was Bakch(e)ios or Bakchos, after which his ecstatic followers were called bakchoi and bakchai. Adopted by the Romans as Bacchus, he was identified with the Italian Liber Pater. While modern scholars inevitably regard Dionysus as a construct of the Greek imagination, in the eyes of his ancient worshippers he was a god—immortal, powerful, and self-revelatory.
Throughout antiquity, he was first and foremost the god of *wine and intoxication. His other provinces include ritual madness or *ecstasy (mania); the mask, impersonation, and the fictional world of the theatre; and, almost antonymically, the mysterious realm of the dead and the expectation of an after-life blessed with the joys of Dionysus. If these four provinces share anything in common that reflects the nature of this god, it is his capacity to transcend existential boundaries. Exceptionally among Greek gods, Dionysus often merges with the various functions he stands for and thus serves as a role model for his human worshippers. In the Greek imagination, the god whose myths and rituals subvert the normal/social identities of his followers himself adopts a fluid persona based on illusion, transformation, and the simultaneous presence of opposite traits. Both ‘most terrible and most sweet to mortals’ in Attic tragedy (Eur. Bacch. 861), he was called ‘Eater of Raw Flesh’ (Ōmēstēs) on *Lesbos as well as ‘Mild’ (Meilichios) on Naxos in actual cult (Alc. fr. 129.9 L.-P., P. Oxy. 53.3711; FGrHist 499 F 4).