In ancient Greek religion and myth, Dionysus (; Ancient Greek: Διόνυσος Diónysos) is the god of wine-making, orchards and fruit, vegetation, fertility, festivity, insanity, ritual madness, religious ecstasy, and theatre. He was also known as Bacchus ( or ; Ancient Greek: Βάκχος Bacchos) by the Greeks (a name later adopted by the Romans) for a frenzy he is said to induce called baccheia. As Dionysus Eleutherius ("the liberator"), his wine, music, and ecstatic dance free his followers from self-conscious fear and care, and subvert the oppressive restraints of the powerful.
https://en.wikipedia.org/wiki/Dionysus