"The use of pictures was creeping into the church already in the third century, because the council of Elvira in Spain, held in 305, especially forbids to have any picture in the Christian churches. These pictures were generally representations of some events, either of the New or of the Old Testament, and their object was to instruct the common and illiterate people in sacred history, whilst others were emblems, representing some ideas connected with the doctrines of Christianity. It was certainly a powerful means of producing an impression upon the senses and the imagination of the vulgar, who believe without reasoning, and admit without reflection; it was also the most easy way of converting rude and ignorant nations, because, looking constantly on the representations of some fact, people usually end by believing it. This iconographic teaching was, therefore, recommended by the rulers of the church, as being useful to the ignorant, who had only the understanding of eyes, and could not read writings. Such a practice was, however, fraught with the greatest danger, as experience has but too much proved. It was replacing intellect by sight. Instead of elevating man towards God, it was bringing down the Deity to the level of his finite intellect, and it could not but powerfully contribute to the rapid spread of a pagan anthropomorphism in the church."