The Gayatri Mantra, found in the Rigveda (Mandala 3.62.10), is arguably the most revered hymn in Hindu dharma. It begins with the sacred syllable , followed by the Vyahrtis (the seven worlds): Bhur, Bhuvah, Swaha . The mantra is a prayer for the illumination of the intellect:
Om Swami approaches the Gayatri Mantra through the lens of " sonic science gayatri mantra om swami pdf
How to Practice (step-by-step)