THE MANTRIC SHIELD OF LORD NARAYANA
Visvarúpa, who was engaged by the demigods as their priest, instructed King Indra, the leader of the demigods, about the armor known as Narayana-kavaca, which enabled him to conquer the leaders of the demons.
After chanting various mantras, Visvarupa begun to chant the following protecting prayer to Lord Narayana: "The Supreme Lord, who sits on the back of the bird Garuda, touching him with His lotus feet, holds eight weapons-the conchshell, disc, shield, sword, club, arrows, bow and ropes. May that Supreme Personality of Godhead protect me at all times with His eight arms. He is all-powerful because He fully possesses the eight mystic powers." Next he offered prayers to the Lord's personal expansions, to the Supreme Lord Krsna, and to the weapons of Lord Narayana. He thus taught King Indra how to take shelter of this mystic armor.
This prayer, Narayana-kavaca, constitutes subtle knowledge transcendentally connected with Narayana. One who employs this prayer is never disturbed or put in danger by the government. by plunderers, by evil demons or by any type of disease. Even if one only hears about it with faith and veneration when afraid because of any conditions in the material world he is immediately freed from all dangers and is worshiped by all living entities.