Indulge too many habits, and life sinks into mind-dulling routine. Too few, and coping with a relentless stream of incoming detail overwhelms you (much as users of certain psychotropic drugs become mesmerized once they notice that every blade of grass is growing.) It’s all a matter of balance, and making art helps achieve that balance. For the artist, a sketchpad or a notebook is a license to explore — it becomes entirely acceptable to stand there, for minutes on end, staring at a tree stump.

