I've been experimenting with an ink pen during my life drawing project. It makes me think of the calligraphy master who meditates for an hour before making a brush stroke. Obviously, I'm not claiming to be anywhere close to a calligraphy master, but I do find myself working at a different rhythm, pausing, and then putting down my brush stroke. Ink is so definite.
I made a series of life drawings defining shapes as either white or black. Finding a quality of mystery emerge in the drawings when resisting the temptation to add outlines or boundaries. Which leads me to a quote about art and mystery:
The job of the artist is always to deepen the mystery.