It is also a good idea to remember that our livelihood, for all specialties, is made possible by the sorrow and pain of others: fallout from the Fall of Adam.
Pope John Paul II published this letter in February 1984, approximately two and a half years after he was shot. My guess is that this letter was inspired by his experience as a patient. George Weigel’s book, Witness to Hope covers this part of his pontificate very well. Pope John Paul II seemed to be very active in the decision making process of his medical care.
I could go on for a while, trying to review this Apostolic Letter, but your time would be better spent reading the document.