This is the symbol of...
It is the symbol of Hinduism. It is also an iconic representation of 'Om' also written as 'Aum', the most sacred syllable, symbol, or mantra in Hinduism, that signifies the essence of the ultimate reality, consciousness or Atman. The Om sound is the primordial sound, and is called the Shabda-Brahman (Brahman as sound). It is a syllable that is chanted either independently or before a mantra.