Om bhur bhuvah svah
bhargo devasya dhimahi
dhiyo yo nah pracodayat
The Gayatri Mantra is one of the oldest and most powerful of Sanskrit mantras. It is as old as the sun and the metaphor is: the sun equals light, which equals knowledge, which equals consciousness. Gayatri will protect you from harm wherever you are whether traveling, working or at home. It will protect your body, make your intellect shine and improve your power of speech. It is a reliever of all diseases, wards of all misery and is the fulfiller of all desires.
To chant the Gayatri Mantra purifies the chanter, to listen purifies the listener.