“Once Zhuang Zhou dreamt he was a butterfly, fluttering about joyfully just as a butterfly would. He followed his whims exactly as he liked and knew nothing about Zhuang Zhou. Suddenly he awoke, and there he was, the startled Zhuang Zhou in the flesh. He did not know if Zhou had been dreaming he was a utterly or if a butterfly was now dreaming it was Zhou. Surely, Zhou and a butterfly and as two distinct identities! Such is what we call the transformation of one thing to another.” (Zhuangzi, Chapter Two: Equalizing Assessments of Things)