Johannes Jaeger presents a profound depiction of the Cistercian Order in his work "Monastic Life in the Middle Ages: A Cultural Image from the Glorious Period of the Cistercian Order," which owes much of its flourishing to Abbot Bernard of Clairvaux, who joined the order in 1098. By the end of the 13th century, the order was represented in many European countries and managed around 700 establishments. Jaeger describes the daily life of the monks in the monasteries, outlines the hierarchical structures and offices, and also addresses the order's possessions and sources of income. The possibilities for joining and leaving the order are also explored. Throughout the reading, the reader is well-informed about how this order, which sought to distinguish itself from others through asceticism and strictness, was able to flourish and expand throughout Europe.