Mantra 16

नाचिकेतमुपाख्यानं मृत्युप्रोक्तꣳ सनातनम् ।उक्त्वा श्रुत्वा च मेधावी ब्रह्मलोके महीयते ॥ १६ ॥

In plain words

Having told, or having heard, this eternal narrative of Naciketas, told by Death, the wise man is exalted in the world of Brahman.