The story of Lord Krishna and the Kaliya naag i.e. the black cobra some five thousand years ago is simply a symbolic illustration. Lord Krishna did no such thing as overpower the black cobra. Here the cobra represents anger and irritation. It is a task of a snake charmer to control a snake, what does Lord Krishna have to do with it? What need Lord Krishna have for controlling the cobra? Could he not find a snake charmer? But no one understands the story, even to this day the fiction continues. Lord Krishna is depicted in the pictures of kaliyadaman (destruction of the black cobra). This �kaliyadaman' means anger, therefore when you conquer and subdue your anger, you can become Krishna . �Karma ne krush kare, the Krushna,� He who destroys ( krush ) his karmas, is Krishna.