1. You may have noticed that nature scenes make you feel good! Part of the reason for that is because of (somewhat) hidden mathematical patterns called fractals.
2. Studies have shown that looking at fractal objects is very pleasing to our frontal lobes — fractal objects tend to fill us with awe and contentment, even if we're just passing by them without staring at them directly.
3. And! Our own human eyes actually move in fractal patterns!!!
Scientists using eye-tracking machines discovered that our pupils first do a big scan of a scene, and then scan again in smaller versions of the bigger scans.