Nan-in, a Japanese master during the Meiji era (1868-1912), received a university professor who came to inquire about Zen.
Nan-in served tea. He poured his visitor's cup full, and then kept on pouring.
The professor watched the overflow...
The Way bears sensation,
Sensation bears memory,
Sensation and memory bear abstraction,
And abstraction bears all the world;
Each thing in the world bears feeling and doing,
And, imbued with mind, harmony with the Way.