Knowing as Being

What is the knowledge that allows us to know all other things? The question is from the Upanishad. The answer is: the knowledge of the Self, Atman, in Sanskrit terminology. It is not a question of knowing a fundamental axiom from which any knowledge is derived, but of the idea of ​​knowing the knower: if you know the knower, you know how much he can know. But how do we know the fundamental subject if, by definition, the subject is what cannot be an object and, therefore, not knowable? The answer is simple: being that subject, that is to say, being the Being. It is as simple as being what we are, and for this we do not have to do anything, it is already done, and it continues to be done. Why then am I still unaware of all things? Why, for example, does the fundamental structure of matter remain unknown to me and I only have incomplete theories that the passage of time refutes? Because the architect of these theories (the scientific community) is a pseudo-subject, and only obtains fractional representations, always incomplete, always on the verge of giving the answer when something new appears in the theoretical system that carries the horizon of knowledge a little bit further away, asymptotically. The knot is only undone by being Atman, and from there, letting the question come. This would be "knowing as being", an epistemological foundation different from that of our sciences.