I Dreamt I was a Butterfly
One day about sunset, Zhuangzi dozed off and dreamed that he turned into a butterfly.
He flapped his wings and sure enough he was a butterfly...
What a joyfull feeling as he fluttered about, he completely forgot that he was Zhuangzi.
Soon though, he realized that that proud butterfly was really Zhuangzi who dreamed he was a butterfly, or was it a butterfly who dreamed he was Zhuangzi!
Maybe Zhuangzi was the butterfly, and maybe the butterfly was Zhungzi? This is what is ment by the "transformation of things."

These Fish Are Happy
(But How Do You Know That?)
One day Zhuangzi and Huizi are strolling on Bridge Hao.
Zhuangzi: "Look how happy the fish are just swimming around in the river."
Huizi: "How do you know they are happy? You are not a fish."
Zhuangzi: "And you are not me. How do you know I don't know the fish are happy?"
Huizi: "Of course I'm not you, and I don't know what you think; But I do know that you're not a fish, and so you couldn't possibly know the fish are happy."
Zhuangzi: "Look, when you asked me how I knew the fish were happy, you already knew that I knew the fish were happy. I knew it from my feelings standing on this bridge.

3 bananas in the Morning and 4 in the Afternoon.
Zhuangzi told this story to his disciples to make a point.
Once a zookeeper said to his monkeys: "You'll get 3 bananas in the Morning and 4 in the afternoon."
All monkeys are upset.
"OK. How about 4 bananas in Morning and 3 in the afternoon?"
Hearing this, the monkeys are content.
One should realize that sometimes a change in phrasing does not represent a real change.