sentences:  In another poem, "Quan vei far bon fag plazentier", written early in 1248, Lanfranc bemoaned the coming fall of Christianity with a metaphorical Sepulchre, which the Saracens, he said, had already destroyed.Christianity, therefore, was doomed and could not be recovered, because it had already been brought down by the infidels.This extreme metaphor was only part, however, of Lanfranc's desire to encourage peace amongst Christians for the sake of the survival of their religion.