Here's an excerpt regarding Irwin's relationship with his studio practice during his "late lines" period(1962-1964):
In the beginning all of this was not very considered. It was done very intuitively. My concentration was not real good. It was mostly a question of just staying in the studio and simply not going out. Whether I did anything or didn't do anything, whether I was able to work or not, I simply would not let myself leave. But after awhile, if you don't let yourself leave, then everything else begins to leave, that is, all of your other reasons or ambitions in being there; and if you're very fortunate, you might then reach a point of being completely alone in an intimate dialogue with yourself as acted out in the realm of the painting.