The lotus flower is a recurrent symbol in Buddhism, representing perfection; its eight petals symbolize the eight levels of consciousness, which allow, once reached, to get the ultimate awareness which allows to know everything directly from the vibrations of space. The aum itself, or om, is a founding part of the process, the mantra from which everything was generated, which shall start from the bottom, in the area of our belly, and pass through our throat to resonate from the top of our head into pure thought and contemplation, to re-establish our consonance to the essence of our world.
Requested by Sheana.