He grasped the knob. It was engraved with a wild rose wound around a revolver, one of those great old guns from his father and now lost forever. Yet it will be yours again, whispered the voice of the Tower and the voice of the roses—these voices were now one. What do you mean ? To this there was no answer, but the knob turned beneath his hand, and perhaps that was an answer. Roland opened the door at the top of the Dark Tower. He saw and understood at once, the knowledge falling upon him in a hammerblow, hot as the sun of the desert that was the apotheosis of all deserts. How many times had he climbed these stairs only to find himself peeled back, curved back, turned back? Not to the beginning (when things might have been changed and time's curse lifted), but to that moment in the Mohaine Desert when he had finally understood that his thoughtless, questionless quest would ultimately succeed? How many times had he traveled a loop like the one in the clip that had once pinched off his navel, his own tet-ka can Gan? How many times would he travel it? "Oh, no!" he screamed. "Please, not again! Have pity! Have mercy!" The hands pulled him forward regardless. The hands of the Tower knew no mercy. They were the hands of Gan, the hands of ka, and they knew no mercy.

— Stephen King

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