" If you wish to understand, know that a sudden comprehension comes when the mind has been purged of all the clutter of conceptual and discriminatory thought-activity. Those who seek the truth by means of intellect and learning only get further and further away from it. Not till your thoughts cease all their branching here and there, not till you abandon all thoughts of seeking for something, not till your mind is motionless as wood or stone, will you be on the right road to the Gate.1 "

― Huang Po , The Zen Teaching of Huang Po: On the Transmission of Mind