Hari describes this ancient Greek drug festival because, in addition to backing up Siegel's conclusion that drug use is natural (or “biologically inevitable”), it also counters many common assumptions about drug use. For instance, it shows that drugs aren’t an exclusively modern phenomenon. The festival also proves that drug use is compatible with great artistic insight and scientific achievement. And it demonstrates that, far from causing madness and unrest, widespread drug use can actually offer great benefits to society. In a nutshell, this festival shows that drug use can mean all sorts of things in all sorts of different settings—but this heavily depends on how any given society treats it.