The hexagram or six-pointed star symbolic of the heart chakra qualities
The hexagram is made of two interlaced triangles, one pointing up and one pointing down. They symbolize the power of spirit and the power of matter coming together, the feminine and masculine in harmony.
Symbolism of the twelve petals
On each petal is inscribed a Sanskrit syllable: syllables kam, kham, gam, gham, ngam, cham, chham, jam, jham, nyam, tam and tham. Energy flows in and out of the petals, carried by the syllable sound, in twelve directions. Each petal represents a plexus where the channels of energy also called “nadis” converge. The syllables symbolically represent the vital energy that comes from these points ( “The Encyclopedia of Tibetan Symbols and Motifs” by Robert Beér). These movements of energy are activated with each inhalation and exhalation and correspond to twelve mental states or “vritties”: fraud, lustfulness, indecision, hope, anxiety, repentance, possessiveness, incompetence, discrimination , impartiality, arrogance, and defiance. The list vary slightly from one tradition to another.