I am reading James Austin's, Zen and the Brain, a big fat wonderfully-written book, a combination of scientific analysis, philosophical exploration, and personal odyssey.
What I like most is neurologist Austin's emphasis that everything in Zen begins with the brain. He quotes Krishnamurti: " ...I don't know what you mean when you say Big Mind and Little Mind. First of all there is the brain."
Austin makes the distinction between the goal of Zen (and perhaps all spirituality) and that of religion. Religion is entering and exploring the world of an elaborated belief system. Zen is exploring the way things are or what is the case.
But what do we mean by exploring and accepting what is the case? Understanding how the brain works might help make this more clear. A few days back I wrote of Guy Claxton's book, Hare Brain and Tortoise Mind: How Intelligence Increases When You Think Less, in my post, The Shadow knows.
Claxton argues that there are several different kinds of intelligence and ways of learning found in our evolved brains. There are also different speeds in which our intelligence is deployed.
There is first a rational and calculating mode of thought where we work out the elements of a problem rationally and logically, weighing the pros and cons. This kind of knowledge which Claxton calls the d-mode (for deliberative or default) is much prized in the hurried, rationalized, and problem-solving modern world. This kind of learning and intelligence stands at the center of our educational system and the institutions that serve us in so many ways.
But there is also the slow, intuitive, and patient learning over time which all of us use but are seldom aware of it. Children learn language and to recognize faces, building on inherited capacities, in this relatively slow and intuitive way. Adults use this implicit form of learning all the time.
We all are able to “size up situations” in our fields of endeavor based on years of experience and in ways we cannot explain to ourselves and others. This is our unconscious intelligence or the intelligent unconscious of our Undermind which can take many confusing, perplexing, and even contradictory patterns and sorts them out silently, patiently, and ingeniously over days, or weeks or even years.
Subjects given tests to determine if they can recognize implicit patterns in sequences of numbers and to anticipate the next and upcoming sequence, for example, quickly learn to accurately predict the next sequence despite the fact that they cannot explain how they do so or even that they have learned anything at all.