"I am seated in everyone's heart,
and from Me come remembrance, knowledge and forgetfulness.
By all the Vedas, I am to be known.
Indeed, I am the compiler of Vedānta,
and I am the knower of the Vedas-" ............................Bhagavad Gita Verse15.15
Vedas [वेद } in Sanskrit means knowledge and knowledge comes from data and then transcends to information which in association and through linkages becomes a field of knowledge and from this field over a period of inner experience evolves into a specific type of wisdom.
Each of the four Vedas provide the basic data and information to gain spiritual knowledge through the Samhitas (mantras and benedictions), the Aranyakas (text on rituals, ceremonies, sacrifices and symbolic-sacrifices), the Brahmanas (commentaries on rituals, ceremonies and sacrifices), and the Upanishads (text discussing meditation, philosophy and spiritual knowledge). Some scholars add fifth category – the Upasanas (worship).
The gaining of spiritual knowledge and transcendence to Divine wisdom is purely outside the purview of the external agencies such as spiritual texts, rituals, mantras, worship and the wisdom of the Guru.
When Lord Krishna says "I am seated in everyone's heart" it means that the essence of the Divine is the basic structural component or the fundamental information quanta in all creation. In the Katha Upanishad we come across this explanation of Brahman being compared to the Aswaththa tree in reverse, whose roots are above and the branches spread down below.
"................It’s pure root is Brahman from whom the world draws nourishment and whom none can surpass.........." ..............Katha Upanishad Ch VI: 1
Commenting on the first verse of the 15 chapter of Bhagavad Gita, Enakshi Ganguly writes
"Although Aswaththa refers to a banyan tree another meaning is everlasting in the sense that it exists in a continuous stream without changing even though innumerable myriads of jivas [embodied beings] are coming and going incessantly. But their coming and going does not change its nature. Whatever form and function it had in the beginning of creation that form and function it will have at all times throughout creation. So that is why it is known as everlasting and indestructible."
This is the fundamental essence called by various names in various scriptures and this is of which Lord Krishna proclaims himself to be.
I was nudged to write this article after I read the news about the discovery of new "Pentaquark" in the Large Hydron Collider at CERN where the Higgs Boson was discovered in 2013. These are all fundamental sub-atomic particle and their discovery needs extremely high energy levels that existed near the beginning of our universe.
There are two ways of knowing namely; one through observation by our senses like seeing, hearing, smelling, tasting and touching. In science it is predominantly through seeing and in the second way of knowing is through an intuitive process as an experience in our consciousness which is personal and cannot be confirmed or verified beyond the individual.
But observing fundamental sub-atomic particles is neither of the above two modalities. It is a third kind of method and involves inferential framework involving complex mathematics and advance computation. The mathematics itself is in an abstract domain and hence is not common knowledge that can easily be passed on to vast majority of the human beings. (99.9999%)
Why I am pointing out this fact is because even leading scientist believe that we will never be able to reveal the very fundamental constituent of nature or creation. There is a limit to any type of observation except that which is intuitive and exists in one's own expanded conscious awareness.
This is what was experienced by authors of ancient scriptures which they laid down in the best way language can express.
To conclude I will quote a very powerful observation from a Saiva siddhanta text:
" Consciousness herself, having descended from the expanded state, becomes the mind, contracted by the objects of perception." ............................ Pratyabhijnahrdayam - Verse 5
We are the limited expression of our minds, which is in contracted state but has the potential to expand in an ever increasing spiral in the evolutionary process of transcendence until our merger of the subject / object duality into a singularity.
Love to you all