An except from “The Zen Teaching of Huang Po.”
“Q. Allowing that the enlightened man who achieves the cessation of thought is Buddha, would not an ignorant man, on ceasing to think conceptually, lose himself in oblivion?
A.There are no enlightened men and there are no ignorant men and there is no oblivion. Yet though basically everything is without objective existence, you must not come to think in terms of anything non- existent; and although things are not existent you must not form a concept of anything existing. For “existence” and “nonexistence” are both empirical concepts, no better than illusions.”