Gayatri is a meter. There are actually quite a few gayatri(s). I will upload them each one at a time. Very powerful Gayatri(s) for each Devi and Devata.
The most chanted of all the mantras, Gayatri mantra - in the video below - is an essential part of homa, Vedic fire ceremony and is chanted to begin and end the day knowing that all we experience is part of the Divine.