The layman Vimalakirti has asked each of the assembled Bodhisattvas to define non-duality. After each of them has given his view, he asks Manjusri to express his.
Manjusri says, "As I understand it, when there is not a word to utter, not a sign to see, nothing to take cognizance of, and when there is complete detachment from every form of questioning, then one enters the gate of non-duality."
Manjusri then asks, "O Vimalakirti, what is your view?"
Vimalakirti remains silent and does not utter a word.
"Well done, well done, indeed O Vimalakirti!" cries Manjusri. "This is really the way to enter the gate of non-duality, which no words can explain!"
from "Zen and Japanese Culture" by D.T. Suzuki