servatism necessitated by its beginnings as a renegade faith in a Pagan world, and as the rituals surrounding Christian worship grew more intricate, the interior design of churches evolved. As the churches grew in size, the altar grew more elaborate, and the people moved proportionately farther away from it; communion rails developed because it was inconvenient to have crowds rushing the ornate altars to receive the Host. These rails eventually developed into a screen of bars or wooden slats, behind which the priest would say the mass. In addition, the priest and the congregation both faced the tabernacle on the back wall, the end result being that the priest blocked the people's view of most of the mass. Over generations, the faithful began to associate the unseen elements of the service with an air of mystery.
Only when the priest lifted the consecrated wine and bread over his head in prayer -- a gesture known as the Elevation -- did the people get a clear view of the action.
In the cities people ran from church to church to see the elevated Host as often as possible, since they assumed that the more Elevations you saw, the more grace you would acquire. At the end of the twelfth century, stories began to circulate of miracles that had occurred at the moment of Elevation -- people had seen visions, the Host shone like the sun, a tiny child had appeared in the priest's hands, and so forth. In some congregations the majority of the faithful waited for the ringing of the sance-bell, which signaled the approaching consecration, before they even deigned to enter the church, and then, as soon as the Elevation was concluded rushed out again as quickly as they had come in. People started lawsuits to ensure that they obtained pews which provided a favourable view of the altar, and some priests even took bribes to protract the Elevation. (Harris 75)To address this growing problem, in 1264, Pope Urban IV suggested a new religious celebration that would bring the consecrated host out into the streets so that those who wishe