Pastor bonus is a document that explains the rules and responsibilities for the people who work for the Catholic Church. Think of it like a big instruction manual for all the people who help run the Church, like priests, bishops, and other important people.
The document talks about things like how to choose new bishops, how to organize Church meetings, and what rules people have to follow when they work for the Church. It is kind of like the rules you have to follow at school or in your house, but for the Church.
The Pope, who is the leader of the Catholic Church, wrote this document to help make sure that everyone who works for the Church knows what they are supposed to do and how to do it the right way. That way, everyone can work together to help people and spread their message of love and kindness to the world.