Kaṭha Upaniṣad · 1.1.4
यमवैतद्वचः सर्वं मय्येवैतद्यद्यदिदं तपः कुरुषे तद्वरं वृणीष्व ॥ ३ ॥
yamavaitadvacaḥ sarvaṃ mayyevaitadyadyadidaṃ tapaḥ kuruṣe tadvaraṃ vṛṇīṣva || 3 ||
Oh Yama, like a fire burns every sacrifice performed by one who is not content. Therefore, oh Lord of Death, I seek another thing.
In this verse, Yama initially offers Naciketas worldly compensations to divert him from his question about death. He offers sons, grandsons, riches, cattle, lands — all the splendor of earthly life. But Naciketas rejects them all, comparing such offerings to a fire that consumes without leaving valuable ashes.
The metaphor of the burning fire (dahati) suggests that worldly pleasures, though brilliant, are destructive. They consume the seeker’s time and energy without leaving permanent residue. Naciketas, young but deeply wise, recognizes that true satisfaction does not come from accumulating more possessions.
The term tapaḥ has a technical sense here: it is the burning heat of sacrifice, but also the spiritual practice of austerity that purifies. Naciketas is performing his own tapas through this three-night wait, and now demands that Yama fulfill his true duty — not offering worldly goods but revealing the supreme truth.
The repetition of the name Yama with the vocative (yamava) indicates respect but also firmness. Naciketas is not a frightened child; he is a spiritual seeker who knows his purpose and will not be distracted. This unwavering determination is the essential quality of the spiritual aspirant (sādhaka).