Parāçara said:—The boy was then cast down on the earth being assailed by the tusks of those elephants of the spheres as huge as mountain peaks; but he recollecting Govinda, thousands of tusks were blunted against his breast: he then spoke to his father: "The tusks of the elephants hard as adamant have been blunted. This is not on account of any strength of mine but is consequent upon my calling upon Janārddana who destroys all dangers and sins the sources of all these evils".
In plain words: The huge elephants throw Prahlada down and stab at him, but their tusks break against his chest while he remembers Govinda (Vishnu). Prahlada tells his father this is not his own strength. It happens because he called on Janardana (Vishnu), who removes all danger and sin.