This is one of the founding books of Daoism & is a lot of fun:

Passages:
There was a beginning. There was a beginning before that beginning. There was a beginning previous to that beginning before there was the beginning. There was existence; there had been no existence. There was no existence before the beginning of that no existence. There was no existence previous to the no existence before there was the beginning of the no existence. If suddenly there was nonexistence, we do not know whether it was really anything existing, or really not existing. 

He comes forth, but from no root; he re-enters, but by no aperture. He has a real existence, but it has nothing to do with place; he has continuance, but it has nothing to do with beginning or end. He has a real existence, but it has nothing to do with place, such is his relation to space; he has continuance, but it has nothing to do with beginning or end, such is his relation to time

Formerly, I, Zhuang Zhou, dreamt that I was a butterfly, a butterfly flying about, feeling that it was enjoying itself. I did not know that it was Zhou. Suddenly I awoke, and was myself again, the veritable Zhou. I did not know whether it had formerly been Zhou dreaming that he was a butterfly, or it was now a butterfly dreaming that it was Zhou.

From http://ctext.org/zhuangzi