Nietzsche in his first masterpiece The Birth of Tragedy defended a theory of the origin and function of Greek tragedy which he considered as the perfect art born in the fusion of two artistic drives, that is, the Apollonian spirit, represented by plastic arts or the art of dream, and the Dionysian spirit, manifested in music or the art of drunkenness. Apollo symbolizes harmony, clarity and static beauty and creates illusions that conceals the harsh reality and eases the pain of human beings, whereas Dionysus representing disorder, intoxication and ecstasy, symbolizes primary forces liberating the instinct and nature of individuals, dissolving boundaries and breaking limits, whose spirit hence was favored and used by Nietzsche to criticize the Socratic rationalism and Christian morality for their false optimism and denial of life.