Shatkona
Shatkona (Sanskrit: षट्कोण; IAST ṣaṭkoṇa) is a symbol used in Hindu yantra; a "six-pointed star" is made from two interlocking triangles; the upper stands for Shiva, Purusha, the lower for Shakti, Prakriti. Their union gives birth to Kumara (Kartikeya), whose sacred number is six.