The worship of the Sri Chakra is central to the Shri Vidya system of Hindu worship. The Sri Yantra also represents the union of Masculine and Feminine Divine. The Shri is represented through a few different types of meditative tools such as Sphere Pendulums, Triangle Pendulums, Dowsing Reiki Chakra Pendulums, and Meditative Sphatiks. The Shri Yantra is composed of nine triangles. These nine triangles are of various sizes and intersect with one another. In the middle is the power point (bindu), visualizing the highest, the invisible, elusive centre from which the entire figure and the cosmos expand. The triangles are enclosed by two rows of (8 and 16) petals, representing the lotus of creation and reproductive vital force. The broken lines of the outer frame denote the figure to be a sanctuary with four openings to the regions of the universe. These Yantras are built using different metals for the different energies and are all utilized for the bringing of the purest meditative state.