All in motor learning
Here's a few cool quotes about movement that you may find inspiring or interesting. In the modern world we tend to value "higher" mental functions like reasoning and language over "lower" functions like motor control and body awareness. And therefore kids spend less time in recess, adults spend more time in office chairs looking at computers, and our mental lives become more virtual and abstract as opposed to concrete and embodied.
I have seen a lot of interesting research and discussion lately on the issue of movement variability. The ability to make small adjustments to a basic repetitive pattern like heart rate, brain waves, energy use and movement seems to be a good indicator of health and function.