According to some scientists, the brain works as much in sleep as in waking, busy problem-solving and prioritizing what should go into memory. This is why the “sleep on it” advice for decision-making works — or is it? Clarity and insight may develop in sleep precisely because there is no work, no doing of mathematical-logical processing at all. Instead, the mind in sleep registers impressions and sorts feelings. What it resolves for waking is based on the innate sense of consciousness we possess simply as human beings. Our busy modern culture wants to work out its contrived problems “24/7.” But insight and wisdom come from “not-doing” or wu-wei. For this reason eastern sages have always seen the absence of dreams as confirmation of not-doing, as a high point of progress towards enlightenment.