Then the third boon comes, and with that the Upanishad proper begins. The boy said, "There is this difficulty: when a man dies some say he is, others that he is not. Instructed by you I desire to understand this." But Yama was frightened. He had been very glad to grant the other two boons. Now he said, "The gods in ancient times were puzzled on this point. This subtle law is not easy to understand. Choose some other boon, O Nachiketas, do not press me on this point, release me."