Chapter 13, Part 2A - Chuang Tzu

He who has a clear understanding of the Virtue of Heaven and earth may be called the Great Source, the Great Ancestor. He harmonizes with Heaven; and by doing so he brings equitable accord to the world and harmonizes with men as well. To harmonize with men is called human joy; to harmonize with Heaven is called Heavenly joy.

Chuang Tzu has said, "This Teacher of mine, this Teacher of mine - he passes judgment on the ten thousand things but he doesn't think himself severe; his bounty extends to ten thousand generations but he doesn't think himself benevolent. He is older than the highest antiquity but he doesn't think himself long-lived; he covers heaven, bears up the earth, carves and fashions countless forms, but he doesn't think himself skilled."

This is what is called Heavenly joy.
~ Burton Watson translation via Terebess Asia Online ~

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