Direction and Degree
They say perception is reality.
Do you ever stop to think that looking in the mirror is not you looking at reality? It's not. I mean, for starters, the image is transposed (your right is on the left and vice-versa); it is a reflection. Heck, if you want to take it further, you might make an argument that when it comes to one's self, we never quite know reality.
Now, maybe you are thinking, what about video? If you see yourself in a video, that's really you, right? I'm not sure if it's any different, the scientists can call me out on this whole argument, I would imagine. It seems when you have a more full image of yourself to work with, you can more easily do the mental gymnastics to flip what you see towards what it really is. But if I look in the mirror and see a pimple on my left side, it's really on the right, and I only know that once I do the brain flip-flop.
And don'r even get me started on how the eye's retina sees things upside down and once again, the brain makes the adjustment in the....wait for it...blink of an eye.
I say all that to say all this. A great many of us are perceiving things that are not reality. Of course, perception is way more than visual. There are the five senses of course, but there are more factors at work. I'm nowhere near smart enough to list them all (at least I perceive I'm not; maybe I am. MAYBE I am just too lazy to think about them or look them up).
A few things happened today that have me in this mode of thought. The first is some gender dysphoria that I think I won't get into right now, other than to say the mirror is damn tricky...there are times I see myself in it and a smile will form on my face (no idea why, other than the hair, I suppose) and other times there just really seems like there is nothing here to see.