Yamada Koun Quote

The entrance into Zen is the grasping of one's essential nature. It is absolutely impossible, however, to come to a clear understanding of our essential nature by any intellectual or philosophical method. It is accomplished only by the experience of self-realization through zazen.

The Gateless Gate: The Classic Book of Zen Koans (ed. Simon and Schuster, 2005) - ISBN: 9780861719716