The original book written by God has been changed. Things that should be there are not and things that should not be there, are. The cells in the body are confused and as a result the body becomes sick and sometimes very very sick. We have added to the book and we have taken away from the book and what does Revelation say. And if any man shall take away from the words of the book of this prophecy, God shall take away his part out of the book of life, and out of the holy city, and from the things which are written in this book.
Nature reads the book.
The book has been changed, and since the message is wrong the person gets sick . The book is violated and nature or God cannot tolerate it. But now comes salvation. Something comes that can wipe the slate clean. Something comes that can restore us to the book of life.