Well. If you want to know what a freemason thinks, which is the main society who uses this eye. Why not look for some books on the matter.

https://www.google.ca/books/edition/Mystic_Masonry/YFg4AAAAMAAJ

Keep in mind, this is a book from 1897, from a member about the matter.

Youll find that they were way ahead of the curve, and that nowadays that have managed to make most of these spiritual and occult things "nonsense" while at the same time practicing these ancient religions and rituals themselves.

Anyway one snippet in this book says...

This is the Ego ; the Thinker ; the “ I am I , ” in man. So far, it is not conscious, but consciousness ; or the cause of it in man's complex nature. It is the “ All-seeing Eye.” It is Christos, potentially. It is Conscience; the " Sun of Righteousness," in man's world of being. It attaches to the body and the lower life through mind, of which it is the potency, but not the act ; the Thinker, but not the Thought.

Mind is the immediate vehicle of consciousness, as matter is called the vehicle of Force.

Thus, from the three postulates of the Secret Doctrine we have, first : Divinity, and Nature at one ;second, we have Spirit and Substance as the dual principle from which all Force and all Matter proceed ; third , Religion and Science, are consistent, each with itself, and in perfect harmony with each other ; fourth, we have a philosophy of the origin , nature , and destiny of Man, agreeing with, and fortified by all previous concepts.

To me, it doesnt just represent the spiritual nature of man, but the beings who created us who are forever watching our progress, whether we accept that they are there or not.

That symbol isnt just some artwork to me, to me it represents the truth of what we are.