I’d wager that ...at first.. we go for the best we can get -- to. Pushing for perfection.
Then, over time...we finally arrive at --- the least amount of annoyance that we can stand.
That satisfaction, is, quite likely, in the real world... in the long run: not owning and lording it over the grass as a god (as we can never get there), but ...keeping it cut back as much as possible.. and... just letting it go.
That perfection, like the grass, like us, like the world...is a moving target. A rust that never sleeps, if you will.
Where...you will always be mowing the lawn, but it is your outlook that governs satisfaction - not the grass. And coming to understand that, is the key. As you can’t solve the grass. You can only solve yourself.