What is the point of the surgery or heart-transplant analogy?

This Teaching examines sanctification as more than a label meaning “set apart.” It presents sanctification as an ongoing process of spiritual preparation in which a believer responds to Yahovah through faith, obedience, repentance, and submission to His Word, while Yahovah is ultimately the One who sanctifies. The Teaching distinguishes the free gift and starting point of salvation from the continuing work of growth and maturity. It uses the Sabbath, Joshua’s preparation before entering the Promised Land, Leviticus 20, Yeshua’s prayer in John 17, Romans 6, and other passages to show a life moving toward holiness. The closing discussion expands the theme by emphasizing the work of the Ruach (Holy Spirit), perseverance, baptism, and growth “from glory to glory.”