Kāthakopaniṣat Bhāshya (काठकोपनिषत् )
1.3.16
नाचिकेतमुपाख्यानं मृत्युप्रोक्तं सनातनम्। उक्त्वा श्रुत्वा च मेधावी ब्रह्मलोके महीयते ॥१६॥
nāciketamupākhyānaṃ mṛtyuproktam sanātanam| uktvā śrutvā ca medhāvī brahmaloke mahīyate ॥16॥
[नाचिकेतम् (nāciketam) - Nachiketa; उपाख्यानम् (upākhyānam) - story; मृत्युप्रोक्तम् (mṛtyuproktam) - told by Death; सनातनम् (sanātanam) - eternal; उक्त्वा (uktvā) - having spoken; श्रुत्वा (śrutvā) - having heard; च (ca) - and; मेधावी (medhāvī) - wise one; ब्रह्मलोके (brahmaloke) - in the world of Brahman; महीयते (mahīyate) - is glorified;]
The eternal story of Nachiketa, as told by Death, brings glory to the wise who speak and hear it, in the realm of Brahman.

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बहुचित्रजगद्बहुधाकरणात् परशक्तिरनन्तगुणः परमः ।
सुखरूपममुष्य पदं परमं स्मरतस्तु भविष्यति तत्सततम् ॥
"The one who has created this variegated vast universe with varied forms has infinite power and is of infinite auspicious qualities. He certainly bestows the highest state of bliss to those who meditate on his ever happy essence." -Dwādasha stōtra 4.3

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