Madhvacharya's Dvaita Vedanta (Tatvavada) and translation of Sarvamoola containing Bhagavad Gita, Upanishads, and Brahmasutra.

Taittirīyopaniṣat Bhāṣyam (तैत्तिरीयोपनिषत् भाष्यम्)

Taittirīyopaniṣat 03.06

sa tapo-'tapyata। sa tapas-taptvā। ānando brahmeti vyajānāt। ānandāddhyeva khalvimāni bhūtāni jāyante। ānandena jātāni jīvanti। ānandaṃ prayanty-abhisaṃviśantīti ॥6॥

He performed austerity. After practicing austerity, he realized that "Bliss is Brahman." Indeed, from bliss alone are all these beings born; by bliss they live after being born, and into bliss they depart and merge.

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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