Dionysos is a very difficult divinity to define – and one suspects that this is exactly how he would want it to be. He is a god of vegetation, particularly of the creeping vine. He is a god of liquid fertility: the catalyst that initiates the process of growth, the vital force that sustains it, and the fluid nourishment that flows from it. Semen, blood, water, wine, honey, milk – Dionysos is all of this. His very essence is a fluidity that is at once defined and undefined.