Pranava yoga meditates on the syllable that is a spiritual icon in what religion?
Pranava yoga:  It is, simply put, fixing the mind on the sound of the mantra “Aum” – the sacred syllable that both symbolizes and embodies Brahman, the Absolute Reality – as the mantra is constantly repeated in unison with the breath. Om: Om (   , IAST: "Auṃ" or "Oṃ", Devanagari: ॐ ) is a sacred sound and a spiritual icon in Hindu religion.
Hindu