The numeric Yantra is an all purpose Yantra created out of three prime metals. Gold, Silver and Copper. Copper is the core, then there is a Silver border and finally encased in gold. The numeric pattern is engraved on the copper on one side and the “beeja” (seed) mantra or the prime syllable that connects to the power of the Sun is inscribed on the other side or the back of the pattern on silver. This Yantra is meant to be worn as a pendant and it must lie between the breasts.