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...
There is a mystery,
Ubiquitous and liquid,
The mother of nature.
It has no name, but I call it "the Way";
It has no limit, but I call it "limitless".
Being limitless, it flows away forever;
Flowing away forever, it returns to my self:
The Way is limitless,
So nature is limitless,
So the world is limitless,
And so I am limitless.