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

Mundakōpanishad Bhāshya

yasmin dyauḥ pṛthivī cāntarikṣamotaṃ manaḥ saha prāṇaiśca sarvaiḥ। tamevaikaṃ jānatha ātmānamanyā vāco vimuñcathāmṛtasyaaiṣa setuḥ ॥6॥

Into which heaven, earth, and sky are woven, along with the mind, life-breath and all, know that one alone as the one-self, the being; abandon other utterances as this-one is the bridge towards immortality.

The term 'amṛtasya' i.e. immortality, is used to indicate the bridge towards liberation. Same is substantiated through Brahmasutra 1.3.2 and Vishnu Sahasranama.

amṛtasya muktasya setuḥ। "muktopasṛpyavyapadeśāt", "muktānāṃ paramā gatiḥ" ityādeḥ॥

The term 'amṛtasya' i.e. immortality, is used to indicate the bridge towards liberation. The brahmasutra (1.3.2) stating, "As declared, is to be attained by the liberated", and the Vishnu Sahasranāma stating, "He is the ultimate resort of the liberated", reiterate this concept.

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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