There are seventy million supreme mantras contained in the Gayatri Mantra, thus chanting it will:
1. Protect you from harm wherever you are.
2. Reduce the effects of the wrong acts one does every day. There is no accumulation of karmic (result of action) debt, since each day's karma (action) is atoned for that day itself by reciting the Gayatri mantra.
3. Wards off all misery.
4. Relieves from all diseases.
5. Various kinds of powers will emerge in one.
6. Recited before taking one's meal, the food will get sanctified and become an offering to the deity.
7. Brings luster to the aura and promotes the accumulation of spiritual light at the cellular level.
8. Builds a cumulative quality of protection referred to as "spiritual armor." It gives protection to those who have become prey of black magic, and antieffects of demons instigated by black magic
9. Assures you a long life.
10. Gives immediate relief from bites of poisonous insects and creatures (scorpion, snakes etc.).
11. It is believed that for any one frightened in the dark, immediate chanting of the Gayatri Mantra is advised to get over the nervousness of the fright.
12. It is also believed that on starting any important and great work if a person detects some bad omen, that person must immediately sit down and chant eleven times the Gayatri. If on starting again, he meets with a new set of bad omens then he is to sit down again and chant the Gayatri for sixteen times, to remove the effects of the bad omen encountered.