Chapter 2, Part 9B - Chuang Tzu

'How do I know that the love of life is not a delusion? and that the dislike of death is not like a young person's losing his way, and not knowing that he is (really) going home? Lî Kî was a daughter of the border Warden of Âi. When (the ruler of) the state of Tsin first got possession of her, she wept till the tears wetted all the front of her dress. But when she came to the place of the king, shared with him his luxurious couch, and ate his grain-and-grass-fed meat, then she regretted that she had wept. How do I know that the dead do not repent of their former craving for life?

'Those who dream of (the pleasures of) drinking may in the morning wail and weep; those who dream of wailing and weeping may in the morning be going out to hunt. When they were dreaming they did not know it was a dream; in their dream they may even have tried to interpret it; but when they awoke they knew that it was a dream. And there is the great awaking, after which we shall know that this life was a great dream.

'All the while, the stupid think they are awake, and with nice discrimination insist on their knowledge; now playing the part of rulers, and now of grooms. Bigoted was that Khiû! He and you are both dreaming. I who say that you are dreaming am dreaming myself. These words seem very strange; but if after ten thousand ages we once meet with a great sage who knows how to explain them, it will be as if we met him (unexpectedly) some morning or evening.'
~ James Legge translation via Stephen R. McIntyre ~

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