Shree Yantra

Shree yantra, also known as Shree Chakra, is called the mother of all yantras because all other yantras derive from it. In the Shree Vidya school of Hindu tantra, the Shree Yantra ("sacred [Shree Chakra]"), is a diagram formed by nine interlocking triangles that surround and radiate out from the central (bindu) point.