A note on the Gayatri mantra. The Gayatri mantra is from the Rigveda, which dates back to 1000 BCE, and is probably one of the most ancient scriptures. The Rigveda probably developed in the Iranian region and then was brought forth to the Indian subcontinent by nomadic priests. The aboriginal Iranians, like their Indian counterparts, were big into Solar alchemy and this can be seen to this day with people of Parsi descent who sought refuge in India after they were driven away from Iran.
In Indian spirituality, the Divine Consciousness is said to be without name, form, or attributes and of the form of pure consciousness. Now, how does one approach, meditate on or access something so abstract, so magnificent, and so lofty to conceive? That is where various deities came into the picture who all provide a subjective glimpse into this indescribable reality. The deities are tools that help one access the lofty Light in gradual steps. The different deities are like the luminous rays of this one central inner Sun.
Savita, the Sun who is invoked in the Gayatri mantra is a prototype of both these aspects. He represents the crystallization of Solar energy in a personified form as Savita, the solar deity. However, he is hardly limited to the physical Sun as the Mantra does not merely invoke physical energy, vigor, etc. attributed to the physical Sun (though these are also attained through the energy of Gayatri). There are different mantras for Surya, who is more accurately the Sun-god, and typically these mantras are used exclusively for health, vigor, etc. Gayatri has traditionally been used for spiritual enlightenment. So, the aspect invoked in Gayatri is not really a “Hindu god”, but the attributeless Light that transcends deities, names, and forms.
There are conversations from ancient scriptures that explain the concept:
Student: Teacher, who should one invoke and realize?
Teacher: Shiva who is in Gayatri and Fire (referring to Vedic fire rituals)
Student: What is in Shiva, Gayatri, and the Fire?
Teacher: The One and the same nameless, formless, luminosity.
I wanted to write this in case someone was concerned about this field (or Gayatri) being about “Hindu Deities” (I was told about this concern in a PM). It is important to understand the concept of deities in Hindu mysticism as they are not exactly the same as aliens, angels, or demons (although some aliens might have been called deities by some groups of people). So, don’t be worried about entities in this context.
To cut the story short - about this field - It is energy, very pure, very potent, very spiritual - as simple as that … 