The Sri Yantra (or Sri Chakra) is a form of mystical diagram (yantra) used in Hinduism and Buddhism. It consists of nine interlocking triangles that surround a central point (known as a bindu). These triangles represent the cosmos and the human body. Bindu represents the cosmic center.
The triangles are circumscribed by two concentric circles composed of 8 and 16 petals, representing the lotus of creation and reproductive vital force. The entire configuration is framed by the broken lines of an earth square, representing a temple with four doors open onto the regions of the universe.
Material: alloy of tin, covered with antimony and patinated