Some phrases have been rattling around in my head. One comes from a yoga teacher of mine who uses the best mundane analogies (she once nicely compared the process of warming up to cooking a noodle—consider how brittle a strand of spaghetti is out of the box). She said, “Sometimes a yoga practice is like washing your windshield: you don’t notice how dirty it is until you clean it off.” The analogy extends to meditation. A good run can clear up the windshield nicely, too; mine did today.
Another is a term a massage therapist laid on me today: “sweet discomfort.” It’s a great description of what we less concretely term “the edge.” I’m sure John Mellencamp agrees.