Pope Francis's funeral is on Saturday, and now's the time to familiarize yourself with a few Catholic terms and phrases that you will hear this week.

Worshippers will flock to the Vatican in the coming days to farewell Pope Francis, including the Cardinals who will elect his successor. Former representative to the Holy See, Sir David Moxon, says the Pope chose most of the Cardinals - so he'd expect them to value a warm and loving Church.

A new pope does not swoop in and openly set about undoing the legacy of another. But a lot can change as far as style, emphasis, guidance and law.

An Irish-born American cardinal was entrusted by Pope Francis to be the camerlengo, the Vatican official who runs the Holy See after the death of one pontiff and before the election of another.

Following Pope Francis' death Monday at age 88, the Vatican will have an acting head until a new pontiff is chosen during the conclave process. That acting head, or camerlengo, is Cardinal Kevin Farrell,