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

अन्तर्यामीति गायत्री परमात्मेत्यनुक्रमात्। विश्वश्च तैजसः प्राज्ञस्तुर्यश्चाक्षरदेवताः ॥४॥

The form of the God who is within our body and who sustains us is the sage of Pranava. Gayatri is the meter. Godhead himself is the presiding deity. Universe, luminescence, knowledge, and liberation – these four forms of the God are the deities for Aa, Uu, Ma, and Nada respectively, that form the four letters of Pranava.

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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