The Gayatri is a universal prayer enshrined in the Vedas. It is addressed to the Immanent and Transcendent Divine which has been given the name 'Savita,' meaning 'that from which all this is born.' The Gayatri may be considered as having three parts - (i) Adoration (ii) Meditation (iii) Prayer. First the Divine is praised, then It is meditated upon in reverence and finally an appeal is made to the Divine to awaken and strengthen the intellect, the discriminating faculty of man.
The Gayatri is considered as the essence of the Vedas. Veda means knowledge, and this prayer fosters and sharpens the knowledge-yielding faculty. As a matter of fact the four core-declarations enshrined in the four Vedas are implied in this Gayatri mantra.