Mundakōpanishad Bhāshya
Mundaka 6.04
nāyamātmā balahīnena labhyo na ca pramādāt tapaso vā'pyaliṅgāt। etairupāyairyatate yastu vidvāṁ stasyaiṣa ātmā viśate brahmadhāma ॥4॥
The Ātmān cannot be attained by the weak, nor by heedlessness, nor even by austerity without proper conduct. However, the self of the wise who strives by these means indeed enters the abode 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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