Gayathri Mantra
The Gayatri mantra is considered one of the most universal of all Hindu mantras, invoking the universal Brahman as the principle of knowledge and the illumination of the primordial Sun. Gayatri refers to a special three-line Vedic meter used in mantras for invoking and focusing consciousness on the Reality. When meditating on the Gayatri mantra, the seeker first directs his attention to the radiance of the sun outside, and then turns the attention inwards to the light of Consciousness within.
Om bhur bhuva svaha Tat savitur varenyam Bhargo devasya dhimahi Dhiyo yo nahah prachodayat
We meditate on the radiance of that Supreme Divine Being, the Creator of the planes of earth, heaven and those in between. May that Divine Being direct our intelligence.