sudarshana chakra | सुदर्शन चक्र
Sudarshana Chakra (Devanagari: सुदर्शन चक्र ISO15919: sudarśana cakra) is the spinning disc-like weapon held by Lord Vishnu/Shri Krishna.
Sudarshana Chakra has a personified form as well. He is a divine personality who has eternally remained the service of the Supreme Lord.
This super weapon has 10 million spikes in two rows in opposite directions which give it a serrated edge. It has the burning power of millions of suns, and is used for the ultimate destruction of an enemy. Whenever, the Lord uses this weapon to kill anyone the jiva attains liberation from Maya.
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REFERENCE
Prema Rasa Madira - The Intoxicating Bliss of Divine Love, Vol. 1, Ch. 4