Let go of all your previous imaginings, opinions, interpretations, worldly knowledge, intellectualism, egotism, and competitiveness; become like a dead tree, like cold ashes.

When you reach the point where feelings are ended, views are gone, and your mind is clean and naked, you open up to Zen realization.

After that it is also necessary to develop consistency, keeping the mind pure and free from adulteration at all times.

Cut through resolutely, and then your state will be peaceful. When you cannot be included in any stage, whether of sages or of ordinary people, then you are like a bird freed from its cage.