The basilica is the official seat of the Pope, and therefore mother church of all churches. It is quite interesting how its interior architecture shows, in a very visual way how the Church is founded on Peter and the Apostles.
The Song of Songs in the Old Testament tells of a husband and her groom longing to be physically romantic with each other. It is an allegory of God's relationship with his people; Christ, with his Church.
The Rossano Gospels is an illuminated manuscript that illustrates Jesus as the Good Samaritan. This Art Speaks hands down what the Church Fathers think about this parable and how it sees the importance of the Church.