Chapter 6 says heaven is not entered casually. It uses the language of passports, certificates, and legal procedure to argue that a person must arrive with a life that has answered accusation rather than merely wished it away.
The striking feature is who must be overcome: not only inner weakness, but satanic accusation. The chapter presents loving enemies and separating from fallen habits as the way a person receives the kind of lived authorization heaven recognizes.
This turns salvation into something concrete. A passport is not a feeling; it is proof that a real course has been walked.