Gayatri Havan is a sacred Vedic ritual that involves the chanting of the Gayatri Mantra and the offering of oblations into a holy fire. The Gayatri Mantra is one of the most revered and powerful mantras in Hinduism, dedicated to the goddess Gayatri, the personification of the Vedic hymn. This ritual is performed to invoke divine blessings, purify the mind and body, and promote spiritual growth and well-being.