Maha Sudarshan Yantra is one of the most effective Yantras for protection against all kinds of harms including Enemies, Evil Eye and Adversaries. This Yantra represents the "Sudarshan Chakra" of Lord Vishnu who is the Protector of entire universe and Sudarshan Chakra is the Lord's main weapon to repeal and punish evil. It is said that Sudarshan Chakra is constructed from pure flames of the Sun and hence a Sudarshan Yantra represents a revolving wheel of sacred flame that keeps all negativity, illness, misfortune, miseries at bay. Very efficient and powerful Beej Mantras are inscribed within the body of this Yantra that have proven their efficiency as protective talismans. The devotee must visualize himself / herself in the center of this sacred circle of Sun fire while worshipping this Yantra so that he / she is secured and protected from all kinds of harm and ill that might befall him / her. According to the Vedas, the Sudarshan Chakra is also a manifestation of the Lord Vishnu's spiritual power and it acts in different capacities according to Lord's desire. Generally, the Sudarshan Chakra appears as a razor sharp edged discus like weapon of Lord Vishnu which have intolerable heat that can destroy anything in the universe. However, it can also uplift the consciousness of the living beings if the Lord decides to do so.