I, Chuang Tzu, once dreamed I was a butterfly. I fluttered here and there, all my desires and goals were those of a butterfly. I know only that I was following the whims of a butterfly and was unaware of my human existence. Suddenly I awoke, and there I lay, myself again. But now I do not know whether I was then a man who dreamed he was a butterfly, or am now a butterfly who is dreaming he is a man.
Chuang Tzu as cited in Medard Boss, 1977, p. 27-- Dreaming and the dreamed in the daseisnanalytical way of seeing. In CE Scott (Ed.) On Dreaming: An Encounter with Medard Boss (p. 7-35). Chico, Calfornia: Scholars Press.