Master pointed to a distant mountain and asked the apprentice: “Why can the mountain be connected to the sky?”
The apprentice said: “Because it is high.”
The master brought the apprentice to the beach and pointed to the sea that was connected to the sky in the distance.
Master asked: “The sea is in the low place,
Without the height of the mountain, why is the sea also connected to the sky and as high as the sky?
The apprentice couldn’t answer.
Master said :”That’s because the sea has a big heart , and its broad heart makes it connected to the sky and as high as the sky.”

“The heart can also achieve a height, a height that reaches the sky. ”