From Freehand Sketching: An Introduction, which I just started reading:
For some, the prime reason to take up sketching is to produce admirable drawings that provide a sense of accomplishment. Although such motivation is important, concern about results not only inhibits learning but also hides an even greater source of motivation: the wealth of other experiences that sketching brings. If you look carefully at the subjects you sketch, a new, exciting world of awareness and delight opens to you.
I am among the “some” of which the author speaks. And if you try to extrapolate that passage to your entire life, then multiply it by a million, you’ll have a pretty good idea of what’s going on in my head these days.