Yantra literally means loom, instrument or machine. In actual practice, a yantra is a symbolic representation of aspects of divinity, usually the Mother Goddess or Durga. It is an interlocking matrix of geometric figures, circles, triangles and floral patterns that form fractal patterns of elegance and beauty. Though drawn in two dimensions, a yantra is supposed to represent a three dimensional sacred object.

Although the yantra is primarily a meditation tool both for serious spiritual seekers as well as sculptors in the classical tradition, its shakti is also available to new seekers with sincere devotion and good intention. It is believed that mystical yantras reveal the inner basis of forms and shapes abounding in the universe. Yantras function as revelatory symbols of cosmic truths.

The Sri Yantra of Tripura Sundari is a yantra or mandala formed by nine interlocking triangles surrounding the bindu. Four of these triangles are orientated upright representing Shiva or the Masculine. Five of these triangles are inverted triangles represent Shakti or the Feminine. Because it is composed of nine triangles, it is also known as the navayoni chakra.

Together the nine triangles are interlaced in such a way as to form 43 smaller triangles in a web symbolic of the entire cosmos or a womb symbolic of creation. Together they express Advaita-ism or non-duality. This is surrounded by lotuses of sixteen petals, and an earth-square resembling a temple with four doors