later in life. Interpretation and influence Wagner's last work, Parsifal has been both influential and controversial. The use of Christian symbols in Parsifal (the Grail, the Spear, references to the Redeemer) together with its restriction to Bayreuth for almost 30 years sometimes led to performances being regarded almost as a religious rite. However, Wagner never actually refers to Jesus Christ by name in the opera, only to "The Redeemer". In his essay "Religion and Art", Wagner described the use of Christian imagery thus: The critic Eduard Hanslick objected to the religious air surrounding Parsifal even at the premiere: "The question of whether Parsifal should really be withheld from all theatres and limited to... Bayreuth was naturally on all tongues... I must state here that the church scenes in Parsifal did not make the offensive impression on me that others and I had been led to expect from reading the libretto. They are religious situations – but for all their earnest dignity they are not in the style of the church, but completely in the style of the opera. Parsifal is an opera, call it a 'stage festival' or 'consecrational stage festival' if you will." Schopenhauer Wagner had been greatly impressed with his reading of Arthur Schopenhauer in 1854, and this deeply affected his thoughts and practice on music and art. Most writers (e.g. Bryan Magee) see Parsifal as Wagner's last great espousal of Schopenhauerian philosophy. Parsifal can heal Amfortas and redeem Kundry because he shows compassion, which Schopenhauer saw as the highest form of human morality. Moreover, he displays compassion in the face of sexual temptation (Act 3, scene 2). Schopenhauerian philosophy also suggests that the only escape from the ever-present temptations of human life is through negation of the Will, and overcoming sexual temptation is in particular a strong form of negation of the Will. When viewed in this light, Parsifal, with its emphasis on Mitleid ("compassion") is a natural follow-on to Tristan und Isolde, where Schopenhauer's influence is perhaps more obvious, with its focus on Sehnen ("yearning"). Indeed, Wagner originally considered including Parsifal as a character in Act 3 of Tristan, but later rejected the idea. Nietzsche Friedrich Nietzsche, who was originally one of Wagner's champions, chose to use Parsifal as the grounds for his breach with Wagner; an extended critique of Parsifal opens the third essay ("What Is the Meaning of Ascetic Ideals?") of On the Genealogy