In both Greek and Roman mythology, the god of wine is known as Dionysus in Greek and Bacchus in Roman tradition. He represents not only wine but also festivities, fertility, and the ecstasy of liberation. Dionysus plays a significant role in mythology, associated with the vineyards and the creation of wine, symbolizing joy and celebration as well as a deeper understanding of life and death. His dual nature highlights the balance between pleasure and excess in human experience.