Tell me about the blow that Paul went through to publish this book.

1927, Paul was paralyzed and then went blind. Paul once had suicidal thoughts, but he soon got out of the trough. This paralyzed, blind man with no writing experience began his heroic career-literary creation. Paul endured great physical and mental pain. He first wrote in a cardboard box, then dictated it himself and asked someone to record it for him. Paul took up new weapons and started a new life.