After Christ’s death, resurrection, and ascension, the 12 apostles and other disciples began to proclaim the gospel of Jesus Christ to all the world. Efforts to follow Jesus Christ ideally have also increased. The desert movement started with a small group of people who abandoned the world and went to a lonely place, which became the standard of their spiritual life, a radical form of meditation and prayer accompanied by fasting at the expense of physical comfort and rigorous ascetic life. Many have embraced this ascetic lifestyle. At first, monks lived in private seclusion in caves or suitable shelters in the desert. Gradually, however, some gathered in certain places occasionally for prayer and meals. Over time, this reclusive nature of the desert movement led to a life that was especially isolated from society. However, to adapt to the changing reality in the lonely and static desert atmosphere, the hermit life has evolved into a new way of life by accepting more and more things. The desert movement, in which thousands of men and women flock to the desert, has provided spiritual life and enrichment to the Church and the world. And the vivid figure who serves as evidence of this movement is the saint Pachomius (292~346 AD). The saint laid the foundation for a new monastic life (coenobitic life). In particular, they had to obey authority and live together according to the rules set by Saint Pachomius. This is a radical change from the previous desert movement, which promotes the reconnection of monks with the Church and society. His efforts are recognized today as the person who played an essential role in laying the foundation stone for the religious order’s standard of life in the world Catholic Church. Therefore, Saint Pachomius’ value in the Catholic Church’s history can be considered truly outstanding.