When asked to find out how our sight works, it really is asking for the absurd. Why, we use our eyes to see of course. The scientific definition of how sight works, I will not dwell on it much safe: light reflecting off surfaces enters your eyes and creates an image on the retina where the information is sent to the brain via the optic nerve and perceived. This is the scientific explanation.
(Correct me if the facts are wrong. My “perceptions” may be rusty from IGCSE.)
But there is more to it, personally, than how it works. (And here I venture out of my “great scientific beliefs”, which I have an abundance of, according to Mr. Turver.) What we see physically is different from what we see literally. We may see something yet fail to comprehend it; hence we do not acknowledge its presence. In other words, we do not “see” it. What we see literally is a part of the information gathered from seeing physically. (These terms may of course be interpreted differently, as I am aware that “literal” can mean without inaccuracy, but here I am taking its literal meaning: word for word.) After we see things physically, we put it into our own words and speak it again. Our own word for word is precisely what it is: our own, hence it is but our own interpretation and alteration. How it is changed depends on our knowledge of the world and our values.
These two types of seeing can only work in a human with the aegis of each other. How accurately we see a thing is determined by the perspective in which we stand.
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