The absent-minded professor There are three variants of procrastination, depending on what you do instead of working on something: you could work on (a) nothing, (b) something less important, or (c) something more important. That last type, I'd argue, is good procrastination. That's the "absent-minded professor," who forgets to shave, or eat, or even perhaps look where he's going while he's thinking about some interesting question. His mind is absent from the everyday world because it's hard at work in another. Paul Graham, Good and bad procrastination procrastinationproductivity
I have pacified your mind Bodhidharma, the first Patriarch of Ch'an in China, was asked by Hui K'e, the future Second Patriarch, so pacify his mind for him; Bodhidharma said, "Bring me your mind and I will pacify it for you." Hui K'e said, "When I search for my mind, I cannot find it." Bodhidharma said, "I have pacified your mind for you." At this Hui K'e was enlightened. Yuanwu Keqin, Thomas Cleary & J.C. Cleary, The Blue Cliff Record In a state of reverberation