Practical Taoism - Thomas Cleary

„As for “the physical form has no such form,” and “things have no such thingness,” physical form and things disintegrate before long, ultimately returning to nothing. This is observant insight, or understanding; once you can understand, you will naturally be detached from illusions, so delusions and random imaginations spontaneously disappear without having to be eliminated. Because thoughts in the mind are all empty, therefore it is said one “only sees emptiness.” This is a matter of transcendental knowledge, not run-of-the-mill quietism. “