About Pranava yoga
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Pranava yoga is meditation on the sacred mantra Om, as outlined in the Upanishads, the Bhagavad Gita, and the Yoga Sutras of Patanjali.
It is also called Aum yoga and Aum yoga meditation. 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.
The purpose of pranava yoga is to become free from suffering and limitation.