This book contains doctrinal views of man and his relationship to God that are often contrary to the Scriptures, not to mention completely out of step with orthodox Protestant theology. I advise anyone contemplating the purchase of this book to proceed cautiously. Do some research on the author and his associate, Witness Lee. There is a considerable amount of unbiased material available via the internet.
This volume of books is certainly a life changer. It is second to none in revelation. The content is life-changing and gives us such a revelation of spirit, soul, body that is unsurpassed. I have to read over and over because of the richness that is found in it. It not only exposes the reader about our "self", but helps us understand when we see soulish behaviours in the church that may otherwise look spiritual.