Chapter 27, Part 5 - Chuang Tzu

Penumbra said to Shadow, "A little while ago you were looking down and now you're looking up, a little while ago your hair was bound up and now it's hanging loose, a little while ago you were sitting and now you're standing up, a little while ago you were walking and now you're still - why is this?"

Shadow said, "Quibble, quibble! Why bother asking about such things? I do them but I don't know why. I'm the shell of the cicada, the skin of the snake - something that seems to be but isn't. In firelight or sunlight I draw together, in darkness or night I disappear. But do you suppose I have to wait around for those things? (And how much less so in the case of that which waits for nothing!)

"If those things come, then I come with them; if they go, then I go with them; if they come with the Powerful Yang, then I come with the Powerful Yang. But this Powerful Yang - why ask questions about it?"
~ Burton Watson translation via Terebess Asia Online ~

Go here to read the introductory post to the chapters of the Book of Chuang Tzu.