The avis, at the end of each sermon summarised the main points of the sermon and invited the people to apply them. The superior of the mission, who had the “feel” for the direction that the mission should be taking, was also able to underline aspects of the sermon that the preacher may have left out or not dealt with.
I cannot confide to …[name omitted in the original] the instructions, given that they ought be truly instructive. So I have begun to give the morning instructions and I will give them in the evening to the extent that circumstances permit (for one must observe the proprieties even on missions, by having my companions preach from time to time) but I will repair, in the announcements which follow the prayers, the omissions of my confrere
Letter to Henri Tempier, 13 March 1821, O.W. VI, n. 63