„Today, I went to sleep under a plum tree. There, I dreamed I was a butterfly, flying so pleasently. Then, I fell asleep, and the dream ended. Now- I have to ask myself - am I Zhuang Zi who dreamed of a butterfly? Or am I that butterfly, dreaming I am Zhuang Zi?“
— Zhuangzi classic Chinese philosopher -369 - -286 př. n. l.