The Narasimha is the incarnation of the Lord Vishnu. In Indian mythology, the Lord Vishnu has many incarnations. The legend of Narasimha is associated with the elimination of the demon king Hiranyakshipu. In his previous incarnation as Varah, Vishnu killed Hiranakshya the younger brother of Hiranyakshipu. To avenge his killing, Hiranyakshipu worshipped the Brahma for years; and the king got a blessing from the Lord Brahma that he is invincible from the gods, demi-gods, serpents, birds or human who is born to them. No weapon can pierce him nor can the fire burn him down. He is invincible in the day and in the night. The blessing made Hiranyakshipu a tyrant he starts a search for Vishnu.
But, Hiranyakshipu’s son Prahlad was a devotee of Vishnu. It enraged Hiranyakshipu and he announced death penalty for Prahlad but, his every single execution method failed. The furious king then asked Prahlad who is his savior, and hearing the name of Vishnu king asked where He is. Prahlad answered he is everywhere. The King asked if he is in this pillar and when Prahlad say he is everywhere. The Hiranyakshipu smashed the pillar and a figure appears half lion and half man and placed Hiranyakshipu on his knee and tore him apart with his claw. It tells that the omnipotent lord is everywhere and ready to save and protect his devotee on every occasion.