The purple lotus is known as the mystic lotus, and is only represented in a few esoteric Buddhist sects. This lotus is often depicted several ways; it may be in bloom or merely a bud. It can be supported by a single stem, a triple stem which symbolizes the three parts of the Garbhadhatu (which are vairocana, lotus and vajra), or a quintuple stem which symbolizes the Five Knowledges of Vajradhatu. The eight petals again symbolize the Eightfold Path and also the eight principal acolyte deities of the central deity on the mandalas. If depicted in a cup or on a tray, it ise considered to be a symbol of homage.