The Shatkona is a symbol for Shiva and Shakti. It is made from two trikonas, Shiva is represented by the upward pointing triangle (△) and Shakti by the downward pointing triangle (▽). Shiva represents the masculine side of God and the parashiva, the all pervasive mysterious form of Shiva without qualities. Shakti represents the feminine side of God and the parashakti, the power of Shiva. The upward-pointing triangle can also represent purusha (the supreme being), and the downward-pointing one Prakṛti, or the world seen as mother nature.
Overlapping they remind us that all these are qualities of one God, neither male nor female but encompassing both (✡). This symbol appears in the twelve-petalled Anahata chakra, or heart chakra. In the West this symbol is more commonly associated with Judaism, where it is known as the Star of David.