Dionysus

Dionysus (Ancient Greek: Διόνυσος *Diónysos*) emerged as a multifaceted deity in ancient Greek religion and mythology, presiding over wine-making, vegetation, fertility, festivity, religious ecstasy, theater, and various forms of divine madness. The Greeks also knew him as Bacchus (Βάκχος *Bacchos*), a name referencing the wild frenzy (*baccheia*) he could inspire. As Dionysus Eleutherius ("the liberator"), he offered freedom from constraints through wine, music, and ecstatic dance. His sacred symbol, the thyrsus - a scepter made from fennel and ivy that dripped honey - served both as a magical wand and a weapon against those who opposed his worship.
His origins remain debated, with various ancient sources attributing his cults to either Thracian or Greek roots. Different traditions offered varying accounts of his parentage: Orphic mythology considered him either Zeus and Persephone's son, a chthonic aspect of Zeus himself, or the twice-born child of Zeus and the mortal Semele. The Eleusinian Mysteries connected him with Iacchus, associated with Demeter. Most narratives place his birth in Thrace before his arrival in Greece as a foreign deity - this quality of "foreignness" and his nature as "the god who comes" became central aspects of his worship.
Wine played a crucial role in Dionysian worship as his earthly manifestation, offering relief from suffering while inducing joy and divine inspiration. His festivals featured sacred dramatic performances that laid the groundwork for Western theater. Beyond revelry, Dionysus maintained strong connections to death and rebirth - his cult served as a "cult of souls," with his followers, the maenads, making blood offerings to the dead, while he facilitated communication between the living and deceased. Some scholars classify him among the dying-and-rising gods.
The Romans equated Bacchus with their Liber Pater ("Free Father"), who presided over wine, fertility, and coming-of-age traditions. However, the Roman state viewed independent Bacchic festivals (Bacchanalia) as subversive due to their transgression of social and moral boundaries, particularly in mixing classes and genders. They ultimately criminalized unauthorized Bacchanalia, allowing only state-sanctioned, restricted celebrations that merged the festivals of Bacchus, Liber, and Dionysus.