The Narasimha Avatar is one of the ten principal avatars of the Hindu god Vishnu. In this form, Vishnu appears as a half-man, half-lion to protect his devotee Prahlada and to defeat the demon king Hiranyakashipu. This avatar symbolizes the victory of good over evil and the importance of devotion. Narasimha is often depicted with a lion's face and a human body, showcasing his fierce nature. The story emphasizes that true devotion can provide protection against even the most powerful adversaries. Festivals like Narasimha Jayanti celebrate this avatar, highlighting its significance in Hindu mythology.