Yantras should be used under right guidance and of unaltered quality. It has proven to be effective even in Puranas and Vedic System and has shown results over years, Parad Shree Yantra is one of the most auspicious, important and powerful Yantras, which not only gives the maximum benefit, but also proves beneficial for almost everybody. It is the source of attaining all worldly desires & fulfilling all wishes through inner cosmic power & mental strength, A Sri Yantra should be placed in the North-East directing of your space and should only be placed on a Friday. Before you place the Sri Yantra you must clean that place following the rituals using milk, saffron (Kesar), and water, and after that just by water.