“The Personality of Godhead assumed the incarnation of Narasimhadeva in order to vanquish the great fears of the demigods. He killed the king of the demons [Hiranyakashipu], who challenged the Lord with a club in his hand, by placing the demon on His thighs and piercing him with His nails, rolling His eyebrows in anger and showing His fearful teeth and mouth.” (Shrimad Bhagavatam, 2.7.14)