haha this may not be everyone's favorite thing to learn about, but it most certainly is probably one of THE most important things to learn and come face-to-face with: What is the Christian's understanding of death? What happens at our moment of death? How can one be prepared? "Because of Christ, Christian death has a positive meaning: 'For to me, to live is Christ, and to die is gain.' (Phil ...1:21)" - CCC #1010
The book: "The Four Last Things: Death, Judgement, Heaven and Hell" by Fr. Martin von Cochem