allows Melot to stab him. Act III Kurwenal has brought Tristan home to his castle at Kareol in Brittany. A shepherd pipes a mournful tune and asks if Tristan is awake. Kurwenal replies that only Isolde's arrival can save Tristan, and the shepherd offers to keep watch and claims that he will pipe a joyful tune to mark the arrival of any ship. Tristan awakes ("Die alte Weise – was weckt sie mich?") and laments his fate – to be, once again, in the false realm of daylight, once more driven by unceasing unquenchable yearning ("Wo ich erwacht' weilt ich nicht"). Tristan's sorrow ends when Kurwenal tells him that Isolde is on her way. Tristan, overjoyed, asks if her ship is in sight, but only a sorrowful tune from the shepherd's pipe is heard. Tristan relapses and recalls that the shepherd's mournful tune is the same as was played when he was told of the deaths of his father and mother ("Muss ich dich so versteh'n, du alte, ernst Weise"). He rails once again against his desires and against the fateful love potion ("verflucht sei, furchtbarer Trank!") until, exhausted, he collapses in delirium. After his collapse, the shepherd is heard piping the arrival of Isolde's ship, and, as Kurwenal rushes to meet her, Tristan tears the bandages from his wounds in his excitement ("Hahei! Mein Blut, lustig nun fliesse!"). As Isolde arrives at his side, Tristan dies with her name on his lips. Isolde collapses beside her deceased lover just as the appearance of another ship is announced. Kurwenal spies Melot, Marke and Brangäne arriving ("Tod und Hölle! Alles zur Hand!"). He believes they have come to kill Tristan and, in an attempt to avenge him, furiously attacks Melot. Marke tries to stop the fight to no avail. Both Melot and Kurwenal are killed in the fight. Marke and Brangäne finally reach Tristan and Isolde. Marke, grieving over the body of his "truest friend" ("Tot denn alles!"), explains that Brangäne revealed the secret of the love potion and that he had come not to part the lovers, but to unite them ("Warum Isolde, warum mir das?"). Isolde appears to wake at this and in a final aria describing her vision of Tristan risen again (the "Liebestod", "love death"), dies ("Mild und leise wie er lächelt"). Influence of Schopenhauer on Tristan und Isolde Wagner's friend the poet Georg Herwegh introduced him