Nietzsche outlined a distinction between its two central forces: the Apolline, representing beauty and order, and the Dionysiac, a primal or ecstatic reaction to the sublime. He believed the combination of these states produced the highest forms of music and tragic drama, which not only reveal the truth about suffering in life, but also provide a consolation for it. Impassioned and exhilarating in its conviction, The Birth of Tragedy has become a key text in European culture and in literary criticism.