sri yantra is a mystical diagram used in the shri vidya school of hinduism. it consists of nine interlocking triangles that surround a central point known as a bindu. the triangles represent the cosmos and the human body...all yantras derive from the sri yantra.
the sri yantra's 9 constituent triangles vary in size and shape and intersect to form 43 smaller triangles, organized in 5 concentric levels. together they represent the totality of the cosmos and express advaita or non-duality. in the middle, the central power point, again, the 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.