Ramayana — Bala Kanda, Sarga 47, Shloka 23
दितेर्गर्भभङ्गो मरुत्प्रतिष्ठा च
Diti’s Severed Embryo and the स्थापना of the Maruts; Viśālā-nagara Lineage
तस्यान्तरं सोऽधिगम्य शक्रः परपुरंजयः । प्रविवेश दितेः कुक्षिं योगमैश्वरमास्थितः ॥
tasyāntaraṃ so'dhigamya śakraḥ parapuraṃjayaḥ | praviveśa diteḥ kukṣiṃ yogamaiśvaramāsthitaḥ ||
その誓戒の隙を見いだすや、敵城を征するシャクラ（インドラ）は、神なるヨーガの威力により、ディティの胎内へと入り込んだ。
FAQs
Here, 'Antaram' signifies a loophole, lapse, or interval in the strict observance of vows (Niyama). Diti's failure to maintain the correct posture while sleeping created an impurity that Indra exploited.
The epithet 'Parapuranjaya' (Conqueror of enemy cities) highlights Indra's strategic ruthlessness and ability to overcome threats to his dominion, even if it requires exploiting a subtle lapse in an opponent's spiritual defense.