Xiangyan was once asked by a monastic, "What is the Way?"
Xiangyan said, "A dragon singing in a withered tree."
The monastic asked Caoshan, "Who can hear this?"
Caoshan said, "In the whole world, there is no one who does not hear it."
—from Xuedou's verse commentary on Blue Cliff Record Case 2
PZI Zen Online Audio: Dharma talk on the great koan “NO” by David Parks Roshi, director of Blue Grass Zen in Lexington KY. As recorded April 2 2020.