What was the purpose of the byzantine art?

Byzantine Christian art had the triple purpose of beautifying a building, instructing the illiterate on matters vital for the welfare of their soul, and encouraging the faithful that they were on the correct path to salvation. For this reason, the interiors of Byzantine churches were covered with paintings and mosaics.

answer; i believe the correct answer is ( blues) ; my favorite: )

answer; i believe the correct answer is in new york,in subway stations,public murals and night clubs;