Answer:
More than just expressing your faith, Christianity uses art to teach and indoctrinate its faithful.
Step-by-step explanation:
The values of the Christian religion will permeate all aspects of medieval life. Dominated by religious themes, painting also had the function of educating, once in the Middle Ages most people did not know how to read or write. In the 6th century, Pope Gregory explained in a few words how art could serve as religious education. According to him, the pictures displayed in the churches functioned as "books of the illiterate", in which men, women and children could see what they heard in the sermons and could not read in the books.