Indra’s Brahma-hatyā, Flight from Sin, and Purification by Aśvamedha
तावत्त्रिणाकं नहुष: शशास विद्यातपोयोगबलानुभाव: । स सम्पदैश्वर्यमदान्धबुद्धि- र्नीतस्तिरश्चां गतिमिन्द्रपत्न्या ॥ १६ ॥
tāvat triṇākaṁ nahuṣaḥ śaśāsa vidyā-tapo-yoga-balānubhāvaḥ sa sampad-aiśvarya-madāndha-buddhir nītas tiraścāṁ gatim indra-patnyā
As long as King Indra lived in the water, wrapped in the stem of the lotus, Nahuṣa was equipped with the ability to rule the heavenly kingdom, due to his knowledge, austerity and mystic power. Nahuṣa, however, blinded and maddened by power and opulence, made undesirable proposals to Indra’s wife with a desire to enjoy her. Thus Nahuṣa was cursed by a brāhmaṇa and later became a snake.
This verse says that even one empowered by knowledge, austerity, and yoga can fall when blinded by the intoxication of prosperity and sovereignty.
Though he ruled Svarga by great acquired power, his pride made him lose proper judgment, and he was brought to a degraded, animal-like state through the agency of Indra’s wife, Śacī.
Power and success should be guarded by humility; otherwise, pride can destroy discernment and lead to rapid downfall despite one’s abilities or achievements.