517. How does God reward us for good works done in a state of mortal
sin?
518. Is it easy to gain a plenary indulgence? Why?
519. What works are generally enjoined for indulgences?
520. What does praying for a "person's intention" mean?
521. How can we have the intention of gaining an indulgence?
522. What does "an indulgence of 40 days," etc., mean?
523. Why did the early Christians do more severe penance than we do?
524. Are indulgences attached to anything but prayers?