What an intriguing and fascinating question, Vas!
I figure the question itself and the line of thoughts leading up to it is arguably more interesting than any potential answer. There are probably just a few individuals on this forum, or anywhere else, whose brains would even come up with contemplating it. Does not surprise me that you turn out to be one of them and thats a compliment. You seem to have a very flexible, open mind. Ready to observe the world with the focus of a child's brain capacity, that is its not limited by or narrowed from what you have been taught or told or otherwise experienced. The more I ponder your question the more impressed and bewildered I get.
I donīt have an answer. On the surface, physiologically, I suppose Steve (masraum) is close. But I am thinking there could be a deeper layer of the experience looking into your own eye(s) that way. Seeing yourself on a more profound level as it were. Suddenly understand who you really are.
OK. I just woke up. No breakfast yet. Low blood glucose levels.