"We have determined to establish publicly in this Mother City of Rome ("in hac alma Urbe") an uninterrupted course of prayer in such wise that in the different churches (he specifies the various categories), on appointed days, there be observed the pious and salutary devotion of the Forty Hours, with such an arrangement of churches and times that, at every hour of the day and night, the whole year round, the incense of prayer shall ascend without intermission before the face of the Lord".As in the case of a previously brief of Paul III, the keynote of this document is anxiety for the peace of Christendom.