The Essential Point
The essential point in learning Zen is to make the roots deep and the stem firm. Twenty-four hours a day, be aware of where you are and what you do.
When no thoughts have arisen and nothing at all in on your mind, you merge with the boundless and become wholly empty and still. Then your actions are not interrupted by doubt and hesitation.
This is called the fundamental matter right at hand.
As soon as you produce any opinion or interpretation, and want to attain Zen and be a master, you have already fallen into psychological and material realms. You have become trapped by ordinary senses and perceptions, by ideas of gain and loss, by ideas of right and wrong. Half drunk and half sober, you cannot manage effectively.
Zen Master Yuanwu