So some quick simple thoughts: 

First, movement is god supreme.  anything that encourages movement for yourself your kids your family, your spouse is supremely good.

Second, I believe that the movement should and must be physiological nature whether it be peddling your bike, walking or hiking, lifting weights, etc. I think the supreme problem about cars and automobiles is that, there is a disconnect between driving and your physiology, unless maybe if you’re driving stick shift? At least with stick shift I suppose you’re getting more blood flow by push pushing the clutch on the far left, and also shifting gears?

good movement, bad movement?

Concentration.

Another thought, this is, that, perhaps also… Concentration is happiness.

So Mihalay C calls it a “flow” state, in which your concentration is so focused in a virtuous way that, everything else fades away. It is the moment of maximum physiological concentration, and supreme joy. 

Some people also call a meditation, but for myself, the reason why I perhaps do not like the notion of meditation so much is that, there’s maybe too much American cultural baggage behind it? Like for example, there’s always the vision of like, the Buddhist monk, sitting in a lotus pose, in which you have to just sit still and calm calm your mind whatever. But for myself, I’m actually the most focused and concentrated when I’m actually moving, lifting insanely heavyweights, mountain biking, and even hiking etc. Typically my general idea is, focus concentration requires also, some sort of physiological skin in the game.