Tetsugan Sensei and I had thought we might work this gem from Dahui’s Shobogenzo into a Sunday dharma talk on the Awakening of Mahayana Faith.
It seemed like too much, though, so I'll share it with you here.
 National Teacher Wuye said to some disciples,
“The essence of your perception and cognition is the same age as space, unborn and undying. All objects are fundamentally empty and quiescent; there is not a single thing that can be grasped.
"The deluded do not understand, so they are confused by objects; once they are confused by objects, they go around in circles endlessly. You should know that the essence of mind is originally there of itself, not based on constructs. Like a diamond, it cannot be broken down.
"All phenomena are like reflections, like echoes; none have real substance.
"Therefore scripture says, ‘Only this one thing is true; any other is not real.’
"If you understand all is empty, there isn’t a single thing affecting you. This is where the Buddhas apply their minds; you should practice it diligently.”