昔者庄周梦为胡蝶,栩栩然胡蝶也,自喻适志与,不知周也。俄然觉,则蘧蘧然周也。不知周之梦也胡蝶与,胡蝶之梦为周与?
《庄子·齐物论》
Chuang Tzu in dreams turned into a butterfly.
Carefree as he was, he forgot himself.
Upon waking he was Chuang Tzu all the same.
Alas it could not be told
If in dream Chuang Tzu was a butterfly,
Or Chuang Tzu a butterfly in dream?
Chuang Tzu