In the second book of the Dialogues Pope Gregory the Great tells us that at the end of the fifth century , among the ruins of the Roman Empire , a boy named Umbrian Benedict , who arrived with his nurse at Rome to continue the course of study , he runs away from the city. For three years he lived in a cave in the mountains , in search of an authentic experience of faith . Here mature insight that will deeply mark the course of history . Intuition that finds its complete form in the immortal pages of the Rule , the code in which St. Benedict orders the time and space of the monastic life , and that for the next centuries will affect the entire Western Monasticism , providing the real meaning of the so-called Christian roots of ' Europe. The church of St. Gregory on Mount Celio , where Pope Gregory founded a monastery , it allows , thanks to p.Innocenzo Gargano OSB cam . , prior of the monastery , to make a journey to rediscover this great saint by Pope Gregory defined " filled with the spirit of all the righteous ," journey from the daily life of the Benedictine monks of the Monastery of Scholastica in Subiaco , in places where the experience of Benedict originated .