In another section of the book, Soen-sa examines the principles and practices that help us cultivate the pre-thinking mind necessary for truly tasting the metaphorical cookie dough of the universal life-force. Responding to a letter from a Zen beginner, a young woman named Patricia who had trouble grasping the value and very notion of “don’t-know mind,” he writes:
Throw away all opinions, all likes and dislikes, and only keep the mind that doesn’t know… Your before-thinking mind, my before-thinking mind, all people’s before-thinking minds are the same. This is your substance. Your substance, my substance, and the substance of the whole universe become one. So the tree, the mountain, the cloud, and you become one… The mind that becomes one with the universe is before thinking. Before thinking there are no words. “Same” and “different” are opposites words; they are from the mind that separates all things.
A few months later, in another letter to Patricia, he explores the three pillars of Zen’s don’t-know mind:
Zen practice … requires great faith, great courage, and great questioning.What is great faith? Great faith means that at all times you keep the mind which decided to practice, no matter what. It is like a hen sitting on her eggs. She sits on them constantly, caring for them and giving them warmth, so that they will hatch. If she becomes careless or negligent, the eggs will not hatch and become chicks. So Zen mind means always and everywhere believing in myself…Great courage … means bringing all your energy to one point. It is like a cat hunting a mouse. The mouse has retreated into its hole, but the cat waits outside the hole for hours on end without the slightest movement. It is totally concentrated on the mouse-hole. This is Zen mind — cutting off all thinking and directing all your energy to one point.Next — great questioning… If you question with great sincerity, there will only be don’t-know mind.