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

Bhagavad Gīta Bhāshya and Tātparya

Weapons cannot cut Him, fire cannot burn Him, water cannot drench Him, not even wind can dry Him.

Both natural causes and particular special causes cannot affect the Lord.

Though indestructible by itself and not affected by natural causes, can it be affected by specific causes? The idea of specific causes is negated in the verse 'nainam', i.e. not this, by giving examples like cutting with a saw, etc.

Gīta Tātparya 2.23

Various external causes cannot destroy or alter the Lord.

Even from the standpoint of (external) cause, there is no change in the Supreme Being; thus it is said - 'nainam chindanti', i.e. not possible to pierce, and so on.

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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