I

The Self-existent created the senses out-going; for this reason man sees the external, but not the inner Atman (Self). Some wise man, however, desiring immortality, with eyes turned away (from the external) sees the Atman within.

In the last chapter the Ruler of Death instructed Nachiketas regarding the nature and glory of the Self. Now he shows the reason why the Self is not seen by the majority. It is because man's mind is constantly drawn outward through the channels of his senses, and this prevents his seeing the inner Self (Pratyagatman); but now and then a seeker, wiser than others, goes within and attains the vision of the undying Self.