Mysterium Fidei References Mysterium Fidei encyclical by Pope Paul VI Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: transubstantiationBut, in his encyclical Mysterium fidei in 1965, Pope Paul VI called for a retention of the dogma of real presence together with the terminology of transubstantiation in which it had been expressed. Read MoreBut, in his encyclical Mysterium fidei in 1965, Pope Paul VI called for a retention of the dogma of real presence together with the terminology of transubstantiation in which it had been expressed. Read More