V.
The dignified, reserved knight of the first act, the impassioned lover of the second, is now a dream-haunted, longing, despairing, dying man, lying under a lime-tree in the yard of his ancestral castle in Brittany, wasting his last bit of strength in feverish fancies and ardent longings touching Isolde. Kurwenal has sent for her. Will she come? A shepherd tells of vain watches for the sight of a sail by playing a mournful melody on his pipe. What a vast expanse of empty sea is opened to our view by the ascending passages in long-drawn thirds! How vividly we are made to realize the ebbing away of Tristan's vital powers!
In the music of this act, if anywhere in the creations of Wagner, we are lifted above the necessity of seeking significances. Even the pianoforte can speak the language of this act. There is not one measure in it which does not tell its story in a manner which puts mere words to shame. Oh, the heart-hunger of the hero! The longing! Will she never come? The fever is consuming him, and his heated brain breeds fancies which one moment lift him above all memories of pain, and the next bring him to the verge of madness. Cooling breezes waft him again towards Ireland, whose princess healed the wound struck by Morold, then ripped it up again with the avenging sword with its telltale nick. From her hands he took the drink whose poison sears his heart. Accursed the cup and accursed the hand that brewed it! Will the shepherd never change his doleful strain? Ah, Isolde, how beautiful you are! The ship, the ship! It must be in sight! Kurwenal, have you no eyes? Isolde's ship! A merry tune bursts from the shepherd's pipe. It is caught up by the orchestra and whirled away on an ocean of excited sound. It is the ship! What flag flies at the peak? The flag of "All's well!" Now the ship disappears behind a cliff. There the breakers are treacherous. Who is at the helm? Friend or foe? Melot's accomplice? Are you, too, a traitor, Kurwenal?
Tristan's strength is unequal to the excitement of the moment. His mind becomes dazed. He hears Isolde's voice, and his wandering fancy transforms it into the torch whose extinction once summoned him to her side: "Do I hear the light?" He staggers to his feet and tears the bandages from his wound. "Ha, my blood, flow merrily now! She who opened the wound is here to heal it!" Life endures but for one embrace, one glance, one word—"Isolde!"—which is borne to her ears by the sadly sweet phrase, typical of the first glance of love—the word and tones which first he had uttered after the potion had made him forget all but his love.
While Isolde lies mortally stricken upon Tristan's corpse, Marke and his train arrive upon a second ship. Brangäne has told the secret of the love-draught, and the king has come to unite the lovers. But his purpose is not known, and faithful Kurwenal receives his death-blow while trying to hold the castle against Marke's men. He dies at Tristan's side. Isolde, unconscious of all these happenings, sings out her broken heart and expires.
"And ere her ear might hear, her heart had heard,
Nor sought she sign for witness of the word;
But came and stood above him, newly dead,
And felt his death upon her: and her head,
Bowed, as to reach the spring that slakes all drouth;
And their four lips became one silent mouth."