Narasimha prototype comes from Rigveda . Vishnu is referred to as wild beast universe striding god
- प्र तद्विष्णुः स्तवते वीर्येण
- मृगो न भीमः कुचरो गिरिष्ठाः ।
- यस्योरुषु त्रिषु विक्रमणेष्वधिक्षियन्ति
- भुवनानि विश्वा ॥
- “Viṣṇu is praised for his heroic power, like a fearsome beast, roaming upon the mountains; in whose three expansive strides all the worlds dwell.”
Narasimha is referred to as world striding god who alone is capable of supporting the earth and the entire universe
- यस्य त्री पूर्णा मधुना पदान्यक्षीयमाणा स्वधया मदन्ति ।
- य उ त्रिधातु पृथिवीमुत द्यामेको दाधार भुवनानि विश्वा ॥
- English:
- “His three steps, filled with sweetness, never diminishing, rejoice according to their own power; he alone supports the threefold earth and heaven, indeed all the worlds.
As referenced in rigveda, the universe all the worlds dwells inside the three strides of Vishnu. You can later see the universal form of Narasimha in ithihasas like Mahabharata and some older Puranas like Vishnu Purana.
सर्वं त्रिभुवनं राजन् लोकधर्मस्य शाश्वतः ।
दृश्यते नारसिंहेऽस्मिन् यथेन्दौ विमले जगत् ॥
“All the three worlds, O king, [the eternal foundation/order] of the worlds, is seen in this Narasiṃha, just as the universe is seen in the stainless moon.”
Rigveda description of him is way more badass. The entire universe all the higher worlds dwells under the footsteps of his foot. It's akin to Nirvana buddha . Director of Mahavatar Narasimha told us that he was highly inspired by Rigvedic description and Harivamsa Parva of Mahabharata
As movie depicted , hiranyakashipu became the universe as per brahmas boon.
भवेयमहमेवार्कः सोमो वायुर् हुताशनः ।
सलिलं चान्तरिक्षं च नक्षत्राणि दिशो दश ॥ १.४१.५३ ॥
अहं क्रोधश्च कामश्च वरुणो वासवो यमः ।
धनदश्च धनाध्यक्षो यक्षः किम्पुरुषाधिपः ॥ १.४१.५४ ॥
No matter how great Hiranyakashipu became he is still an ant to Narasimha