Feeling exhausted, Tlön was delighted to discover a small entrance to a cave. He entered it cautiously. There was no sign of danger around, and so he sat down some distance from the entrance. Leaning against the smooth wall of the cave, he closed his eyes. Soon he fell asleep. He dreamt that he was flying. As he flew over a vast forest, he came to a rugged hill. He circled it a few times, and then he spotted a small entrance to a cave close to the top. To his surprise, it looked rather familiar. He came down, looked around, and walked cautiously into the cave. And then he saw himself. His back against the cave wall, he was fast asleep. So as not to wake himself up, he walked out of the cave as gingerly as he could. Realizing how outlandish the situation in which he had found himself actually was, he started laughing as soon as he reached the entrance. He woke up laughing, too. Shaking his head, he got up. Feeling refreshed, he walked to the entrance of the cave, looked around, and walked out. It was time to resume his journey. If only he could fly, Tlön thought wistfully.