A yantra is the most sacred geometry known to mankind, and is a very special energetic instrument for spiritual advancement. Among the yantras, Sri Yantra is considered to be the oldest, the most powerful and the most effective. Sri Yantra is believed to contain the power of all creation, and is seen to be the true form of Divine Mother Herself.
Its interlocking triangles are symbolic of the union between the masculine and feminine energies of creation. Both qualities of male and female are fully represented in this form, which we also have in ourselves. Beyond its form, however, there is a greater mystery to explore in the Sri Yantra.
The more you meditate on the form, the more you will find it helps to purify and balance your mind, spirit and environment.
Original Sri Yantra painting on Papyrus