We find two words Savita and Savitri very frequently mentioned in this Upanishad. Eventhough both indicate Sun and His energy, they carry different meanings in different contexts. The Midday Sun is called Savita and His light and energy, Savitri. In Gayatri Upasana it is well known that the Sunlight of dawn is Gayatri, of Noon, Savitri and of dusk, Saraswati. This Upanishad explains Gayatri in its universal setting and offers a process known as Balatibala Vidya which reduces hunger and thirst.