Butterfly dream

昔者莊周夢為胡蝶，栩栩然胡蝶也。自喻適志與！不知周也。俄然覺，則蘧蘧然周也。不知周之夢為胡蝶與，胡蝶之夢為周與？周與胡蝶，則必有分矣。此之謂物化

Long ago, Zhuang Zhou dreamt he was a butterfly. He fluttered gaily, in a butterfly way, all to his pleasure, following his whims ! He did not know Zhou. Suddenly he woke up, and at once was Zhou again. But he did not know whether he was Zhou dreaming he was a butterfly, or a butterfly dreaming it was Zhou. Yet, between Zhou and the butterfly, a distinction must be made. This is called the transformation of things.