A Requiem Mass is a specific type of Catholic Mass celebrated for the deceased. Its primary purpose is to honor and pray for the souls of those who have passed away, asking for their eternal rest. The service includes special prayers, hymns, and readings that reflect themes of mourning and hope for resurrection. The term "Requiem" comes from the Latin word "requies," meaning rest. This Mass often features the Gregorian Chant, a form of plainchant, and is sometimes set to music by famous composers like Wolfgang Amadeus Mozart or Giuseppe Verdi. These musical settings enhance the solemnity and beauty of the service.