The Gayatri Mantra is the most revered mantra in Hinduism. It consists of the prefix :om bhūr bhuvah svah  ॐ भूर्भुवस्वः, a formula taken from the Yajurveda, and the verse 3.62.10 of the Rigveda (which is an example of the Gayatri meter). Since all the other three Vedas contain much material rearranged from the Rig Veda, the Gayatri mantra is found in all the four Vedas. The deva invoked in this mantra is Savitar, and hence the mantra is also called Sāvitrī.

By many Hindus, the Gayatri is seen as a Divine awakening of the mind and soul, and within it a way to reach the most Supreme form of existence, and the way to Union with Brahman. Understanding, and purely loving the essence of the Gayatri Mantra is seen by many, including the leader Satya Sai Baba, to be one, if not the most powerful ways to attain God

Although many Hindus believe that the Gayatri Mantra is restricted to only the males of the first three castes who have received Upanayana in orthodox Hinduism, others believe that the Gayatri is unlimited in potential, and that any soul is capable of reaching Parabrahman with true understanding and faith in God through the mantra.