Angelo Roncalli believed in the Church’s potential, from Christ and the Holy Spirit, to become ever again rejuvenated. This came from his prolonged work editing the records of Metropolitan Archbishop Charles Borromeo’s 1575 visitation of his own diocese of Bergamo. The visitation applied Trent’s reform decrees and renewed a large diocese by imposing new standards of Catholic life. As Pope John XXIII, Roncalli wanted to promote such a Catholic rejuvenation through the Second Vatican Council, at which his objective of pastoral revitalization gradually took hold among the council members.