Yantra contains Mantra, inscribed at the proper place. The presence of the deity is invoked into the Yantra by worship, the procedure of which is almost similar to that of a “Pratima” or image.
A Yantra wherein the deity has been roused by duly worshiping it, can then be used for any purpose – especially for the fulfillment of one’s desires and overcoming the problems that may be occurring in the life .