雲門匡真禪師廣錄 2.37

2.37

He cited: "The Cantongqi says: 'Interpenetration and non-interpenetration.'" The Master said, "What is non-interpenetration?" He then pointed with his finger at the end of the wooden bench and said, "This is the end of the bench. What is interpenetration?" The Master said, "What do you call the end of the bench?"