Who sends the mind to wander afar? Who first drives life to start on its journey? Who impels us to utter these words?
What canot be spoken with words, but that whereby words are spoken. Know that alone to be Brahman, the Sprit; and not what people here adore.
What cannot be thought with the mind, but that whereby the mind can think. Know that alone to be Brahman, the Spirit; and not what people here adore.
Kena Upanishad