When you're dreaming, you don't know it's a dream. You might even interpret a dream in your dream - and then wake up and realize it was all a dream. Perhaps a great awakening will reveal this to be a dream as well.
ZhuangziThe Tao is in all things, in their divisions and their fullness. What I dislike about divisions is that they multiply, and what i dislike about multiplication is that it makes people want to hold fast to it. So people go out and forget to return, seeing little more than ghosts.
ZhuangziWe cling to our own point of view, as though everything depended on it. Yet our opinions have no permanence; like autumn and winter, they gradually pass away.
ZhuangziIf there is existence, there must be non-existence. And if there was a time when nothing existed, there must have been a time before that - when even nothing did not exist. Suddenly, when nothing came into existence, could one really say whether it belonged to the category of existence or non-existence?
Zhuangzi