Most people still talk about right and wrong. They say a thing is toxic, unacceptable, dishonest, a betrayal. What many of them no longer say is the older word: sin.
This little book is not a list of sins and not a lecture. It asks what Catholics actually mean by the word — why the Church distinguishes mortal from venial sin, why temptation is not the same as guilt, why knowledge and freedom matter, why doing nothing can be a choice, and why another person’s sin can become partly ours. It looks at conscience, habit, confession, and the surprising fact that the Catechism begins its treatment of sin with mercy.
The point is not to make the reader feel terrible. The point is to make the word accurate again — because a wound that can be named can also be forgiven.