next dung Shan studied with Glaceon. And this next story involves quite a long exchange. So rather than go through it line by line, I'm going to summarize it in a nutshell. Dung Sian tells Gration a story that he had heard from someone else about a conversation between a monk and the national teacher. So it's a secondhand story that he's pondering. And by the way, a national teacher is, this is a official title, given to the teacher to the Emperor. So the story goes, the National Teacher instructed a monk saying that even inanimate things, that is non sentient beings expound the Dharma. They embody our true nature. The monk then replied to the national teacher, pointing out that he cannot hear inanimate things. He cannot hear a wall tile. How could a wall tile convey the Dharma so this monk wasn't buying it. And the exchange ends with the national teacher standing his ground by reciting a line from a sutra. And then, when Dong Shan finished telling this story to Grayson, Grayson then said, I have this teaching, but one seldom encounters a person who understands it. Dang, Shannon said. I'm not clear about it. I asked you for instruction about this too, which Glaceon lifted his whisk upright into the air and said Do you understand? A whisk is a teacher accoutrement. It's called a Hosszu in Japanese and it's basically a short staff perhaps made of wood with a bundle of horsehair or cow hair flowing from the tip. So in this simple act of holding up his whisk in the air, what was going on saying?