ओ३म् भूर्भुव: स्व: तत्सवितुर्वरेण्यं भर्गोदेवस्य धीमहि धियो यो न: प्रचोदयात्
The Almighty God may illuminate our intellect, which may lead us on the righteous path.
This is the most important prayer. The teachings of and the powers incorporated in Gayatri mantra fulfil this purpose. Righteous wisdom starts emerging as soon as Jap of this mantra is taken up as a Sadhana.
Right from Brahma, the Creator of this universe, down to the present era, all the rishis, saints, spiritual seers and seekers have demonstrated the beneficent effects of the chanting of Gayatri mantra.