svayam siddha | स्वयं सिद्ध

svayam siddha (Devanagari: स्वयं सिद्ध ISO15919: svayaṁ siddha) means the one who does everything with His own shakti.
One and only svayam siddha personality is Shri Krishna. He is the cause of all causes, He has no beginning and no end. He is the ultimate source of all living and non-living things.
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