There are in Zen no sacred books of dogmatic tenets.
If I am asked, therefore, what Zen teaches, I would answer
Zen teaches nothing. Whatever teachings there are in Zen,
they came out of one's own mind. We teach ourselves;
Zen merely points the way.
D. T. Suzuki

The Enigma of Zen is here illustrated. Zen cannot be quantified, described or explained. It is non doing. It is everything that is not. All the books and teachings describing Zen are not Zen. They are a path to a state of non -consciousness where the books, teachings and reader disappears.