The majority of people in Medieval times were illiterate, so their literature could not include reading. Therefore, literature for an illiterate society consisted of: folk songs, liturgical hymns, recited stories (folklore), recited poetry, jokes, proverbs, and limited amounts of theater. Western Church literature was basic to Medieval society and liturgical hymns were the most popular form of this style. These religious songs, as well as, prayers and stories were also passed down through the ages. 

Because there is no widespread reading and writing in an illiterate society, the vast majority of Medieval literature was not preserved in written form other than what monasteries thought was important enough to copy. Folklore may seem like it is easily passed down through the ages, which is true. However it is almost always significantly altered over time, making it nearly impossible to know what was the original. Moreover, It is also difficult to imagine how a church congregation would memorize hymns without change, due to the fact that there was no musical notation and the words were not written down. Monastics, theologians, and scholars were the only chance for preservation. 

The Joys of Paradise was a popular hymn in the Early Middle Ages. Its themes include the unchanging nature of heaven and darkness of history, asserting that there is personal, ethical progress but no historical progress. Seeking to escape the carnal prison of flesh, the soul is always ethically righteous. In heaven, there will be singing, as it is morally and spiritually clean. There will also be endless days, no change, no progress, no privacy, no ambition, and even hunger, but Augustine said that there would always be food to satisfy it. 

Aurelius Clemens Prudentius was an Early Roman Christian poet whose works are still somewhat preserved. Age changed his perspective so he saw the futility of his worldly accomplishments, which will all be annulled by death, and his mind lost the world he loved. He equated morning with redemption, and stated that sin flourished in darkness, whereas light symbolized ethical purity and conquered darkness. Some of Prudentius’s other themes were: God foresees everything and knows all secrets, being a lawyer, involved, and successful, is futile. Instead, Prudentius advised to rejoice with songs of praise, since God’s judgement chases away evil. Pray and God will sanctify you.