Simplify the following text for a Grade 8 native English-speaking person.
Original: Now Urbi et Orbi refers to a papal address and Apostolic Blessing that is addressed to the City of Rome and to the entire world from the Apostolic Palace in the Vatican . Usually they are only given at Christmas and Easter , but also the first speech of a new pope is Urbi et Orbi , and sometimes one is given to special gatherings of pilgrims in Rome and during Holy Years
Simplified: Urbi et orbi is also used at St. Peter 's at the Papal inauguration and , on very rare occasions , as the blessing of pilgrims and during the Holy Year ( Jubilee ) .