Purple Lotus

Purple Lotus is a mystic lotus associatic with esoteric sects: The flowers may be in full bloom and reveal their heart, or in a bud. They may be supported by a simple stem, a triple stem (symbolizing the three divisions of Garbhadhatu: Vairocana, lotus and vajra), or a quintuple stem (symbolizing the Five Knowledges of Vajradhatu). The eight petals represent the Noble Eightfold Path and the eight principal acolyte deities of the central deity on the mandalas. The flowers may also be depicted presented in a cup or on a tray, as a symbol of homage. http://www.buddhanet.net/e-learning/history/b_lotus.htm