Diurnum

Diurnum is a type of document that the Catholic Church uses. It is made up of prayers and readings that the priests and other religious people use every day at certain times, like during Mass or in their own prayer time. The word "diurnum" means "daily" in Latin, which is the old language that the Church used to use.

Think of it like a special book that has all the prayers and readings that the Church wants its followers to say every day. It's kind of like how you have a special book or toy that you play with every day, except this book helps people talk to God and feel closer to him. Just like how you might have different toys or books for different times of day or activities, diurnum has different prayers and readings for different times, like morning, noon and night.

The diurnum is an important part of the Catholic Church's traditions and helps people stay connected to their faith on a daily basis.