You can read "The Realm of Illusion" as the prequel to "The Beginning of Dreams: The Human World". It can be a story about "Zhuang Zhou's Dream of Butterflies" or a story about "past and present lives". It is recommended that you read the first draft or revised version of "The Beginning of Dreams: The Human World" before reading it... Otherwise, you will not know who Suwu is and who Qingxuan is...
Intention: