godnotgod
Thou art That
After that, the question then becomes why I should believe your claims are justified. I might need some convincing that you arrived at your conclusions in a way that is valid. Why should I believe you as opposed to the millions of others who have differing opinions? How do I determine whether someone is actually an authority or has merely convinced themselves of certain opinions? Or, worse, they they are not a fraud (which I am *not* accusing you of, by the way---but frauds do exist).
I am sure you have experienced dream-sleep at one time or another. When two dreamers awaken, they both realize they have been dreaming, and can communicate the characteristics of the dream-world with one another with a fair degree of agreement about the nature of dreaming. IOW, it is because of the awakened state that both dreamers can see the same reality. Likewise, the Enlightened/Awakened see this ordinary dream-world that most of us only think to be 'reality' in the same way. For them, this is just another level of the dream. The fact that there is agreement as to what they see points to a universal, impersonal consciousness underlying their insight. IOW, their insight is not a matter of personal opinion, but of an impersonal, universal view. This is pretty much confirmed by the fact that mystics throughout history and in different places, have pretty much come to the same conclusions about the nature of the world, and of the true nature of Reality. Differences are only seeming ones, for the most part, once you know how to read between the lines.
Your question is still within the realm of Reason and has to do with factual knowledge, not Enlightenment. Enlightenment is not about what you know, but about what you see.