Once upon a time,
I, Chuang Tzu, dreamt I was a butterfly,
fluttering hither and thither,
to all intents and purposes,
a butterfly.
I was conscious only of following my fancies
as a butterfly,
and was unconscious
of my individuality
as a man.
Suddenly, I awoke,
and there I lay,
myself again.
Now I do not know whether I was then a man dreaming I was a butterfly,
or whether I am now a butterfly dreaming I am a man.

Chuang Tzu