Sri Yantra, copper 10 x 10 cm The Sri Yantra is one of humankind's most ancient symbols. For many millennia the Sri Yantra has been used to invoke good fortune, wealth, health, and as an aid for meditation. Nowadays, various research scientists have shown interest in this ancient Vedic yantra. The Sri Yantra's extraordinary energetic power depends upon its exact geometry. This complex geometry is the key to its effect and has interesting mathematical implications. The Sri Yantra is auspiciously placed in the north or northeast of a room or building. The flat side of the central triangle (with a dot in the centre) should face upwards. The Sri Yantra can also energise food, beverages, or other things. Simply place appropriate items on the yantra and let them stand there for a few minutes (the longer the better). The flat side of the Sri Yantra's central triangle should be facing east.