Ann Voskamp said this quote

The mind would rather fret about the future or pine over the past — so the mind can cling to its own illusion of control. But the current moment? It cannot be controlled. And what a mind can’t control, it tends to discount. Brush past ... over. It’s the battle plan of the enemy of the soul — to keep us blind to this current moment, the one we can’t control, to keep us blind to Him, the One who controls everything.