Wei Wu Wei is one the true zen masters so I think, read his books and know for your self, as other reviewer wrote,truth is not for everyone, you have to be strong mentally to know it. All his books say it lucidly (pun intended). Just read the book, if you are searching for answers about god, about your self, this book will end your search.
Many books no matter are written on Advaita or Buddhism for that matter. Please go ahead and read them, then take this book and read it. You will see a difference, the difference is that,this author makes an effort in making you understand something so profound.
Some concepts are easy to understand, some aren't, this book is meant for those who are are looking for answers and who can think. If you are in the lookout for a bed time story book, better stay away from it else, you will be writing a review that this book is a disappointment.
If you are a beginner in eastern philosophy look else where.