(3) Then Uddalaka Arum questioned him. 'Yajfiavalkya,' said he, ' we were dwelling among the Madras in the house of Patancala Kapya, studying the sacrifice. He had a wife possessed by a spirit (gandharvd). We asked him: " Who arc you? " He said: " I am Kabandha Atharvana." He said to Patancala Kapya and to us students of the sacrifice: fCDo you know, O Kapya, that thread by which this world and the other world and all things are tied together? " Patancala Kapya said: "I do not know it, Sir/ He said to Patancala Kapya and to us students of the sacrifice: * Pray do you know, O Kapya, that Inner Controller who from within controls this world and the other world and all things? " Patancala Kapya said: " I do not know him, Sir." He said to Patancala Kapya and to us students of the sacrifice: a Verily, Kapya, he who knows that thread and the so-called Inner Controller knows Brahma, he knows the worlds, he knows the gods, he knows the Vedas, he knows created things, he knows the Soul, he knows everything/' Thus he [i.e. the spirit] explained it to them. And I know it. If you, O Yajfiavalkya, drive away the Brahma-cows without knowing that thread and the Inner Controller, your head will fall off/ ' Verily, I know that thread and the Inner Controller,; Any one might say "I know, I know." Do you tell what you know/