Gayatri is Soul of Sanatan Dharma z
In this video on Durga Gayatri Mahima by various artists, the speaker tells that gayatri is the soul of Sanatan Dharma & the powers of Gayatri Maa are infinite. Maa Gayatri has 24 shaktis out of Durga Gayatri is the most powerful. Just like inspite of having all nutrients in food, sometime some special nutrient is required in the food, similarly Gayatri mantra is the most powerful of all mantras & can be called the powerhouse or lighthouse of all. So in order to get energy from Gayatri, Gayatri Upasana is being done.