The mission is a preaching event. God's Word is proclaimed through the Bible and Catholic doctrine. It is also proclaimed through the life, learning, and personal experience of the preacher. Services last about one hour and fifteen minutes, give or take five or ten minutes depending on attendance and other factors. Services are in the evening at a time to be determined by the parish, taking into account parents of young children and the elderly. The weekend the mission starts, the missionaries will preach at all the weekend Masses. The weekend homily is a last invitation to the mission.