St. Gregory the Great was born to a wealthy family in Rome. He began his career as a Roman lawyer but after much prayer and inward struggle Gregory decided to abandon everything and become a monk. The proof of love is in the works. "Where love exists, it works great things. But when it ceases to act, it ceases to exist." - St. Gregory the Great
Pope Gregory I, commonly known as Saint Gregory the Great, was the head of the Western or Catholic Church from 3 September 590 to his death in 604. Gregory is well known for his writings, which were more prolific than those of any of his predecessors as pope.
Pope Gregory was famous for the emphasis he put on missionary work. He sent many people out to bring many to Jesus and into the Church. Anglo-Saxon Britain was, at that time, still on the frontier of Christendom. It was Pope Gregory who dispatched St. Augustine (of Canterbury) to Kent in 597 (not to be confused with St. Augustine of Hippo).
Pope Gregory made many changes to the Mass, some of which remain today, The position of the Our Father in the Mass remains where Pope Gregory placed it.
He emphasized the aspect of service to the poor for deacons. The number of deacons was increasing in number and they were seen as less essential as extensions of the Bishop than they were in the early Church. Deacons were often tasked with giving alms to the poor, and at least one was assigned to each church and ordained for this purpose.
Pope Gregory may have also established "cantus planus," known in English as plainchant. Most today know this style of singing as Gregorian Chant. The melodious, monophonic music is known throughout the Church and closely associated with medieval monasteries. Gregorian chant gives us the oldest music we still have in the original form, some dating to the centuries just after the death of Gregory. It remains a matter of some dispute just how involved Pope Gregory was in the development of the style. Some music historians argue the credit is a misattribution that rightly belongs to his less famous successor of a century later, Gregory II.
Pope Gregory was well known for his alms to the poor, and he gave quite generously of the riches donated to the Church by the wealthy people of Rome. Everything from money to land was given to the poor in some fashion. He made clear to his subordinates that their duty was to relieve the distress faced by the poor.
He is the patron saint of musicians, singers, students, and teachers.
In relation to the Mass, St. Gregory the Great is perhaps especially remembered by many for the Eucharistic Miracle that occurred in 595 during the Holy Sacrifice. This famous incident was related by Paul the Deacon in his 8th century biography of the holy pope, Vita Beati Gregorii Papae. Pope Gregory was distributing Holy Communion during a Sunday Mass and noticed amongst those in line a woman who had helped make the hosts was laughing. This disturbed him greatly and so he inquired what was the cause of her unusual behaviour. The woman replied that the she could not believe how the hosts she had prepared could become the Body and Blood of Christ just by the words of consecration. Hearing this disbelief, St. Gregory refused to give her Communion and prayed that God would enlighten her with the truth. Just after making this plea to God, the pope witnessed some consecrated Hosts (which appeared as bread) change Their appearance into actual flesh and blood. Showing this miracle to the woman, she was moved to repentance for her disbelief and knelt weeping. Today, two of these miraculous Hosts can still be venerated at Andechs Abbey in Germany (with a third miraculous Host from Pope Leo IX [11th century], thus the Feast of the Three Hosts of Andechs [Dreihostienfest]). During the Middle Ages, the event of the Miraculous Mass of St. Gregory was gradually stylised in several ways. First the doubting woman was often replaced by a deacon, while the crowd was often comprised of the papal court of cardinals and other retinue. Another important feature was the pious representation of the Man of Sorrows rising from a sarcophagus and surrounded by the Arma Christi, or the victorious display of the various instruments of the Passion.