This Yantra is the Prime Protective Yantra alongwith the Mahakali Yantra. The Sudarshan refers to the discus of Vishnu, weapon to repel and punish evil and it is constructed from the pure flame of the sun. It is a dynamic Yantra in that the construction represents a whirling wheel of sacred flame that keeps all negativity, illness, misfortune and so on at bay. Within the body of the Yantra are inscribed sacred bija mantras or seed syllables that have proven their efficacy as protective talismans. When worshipping this Yantra, the devotee visualizes herself being in the centre of this sacred circle of sun-fire, secure and protected from all harm and ill that might befall her.