The Ladder of Divine Ascent (Scala Paradisi)
Κλῖμαξ τοῦ Παραδείσου
John Climacus (c. 579–649), abbot of the monastery on Mount Sinai, composed this thirty-step guide from renunciation to divine union, organizing the steps as an ascent corresponding to the thirty years of Christ's hidden life before his public ministry. Translated into Latin, Syriac, Arabic, Armenian, and Old Church Slavonic, and surviving in hundreds of manuscripts from the 9th century onward, it became the most widely used handbook of ascetic life in the Greek-speaking Church and was universally known at Orthodox royal courts. An iconic 12th-century miniature from Saint Catherine's Monastery, Sinai, depicts the Ladder as a literal climb with demons pulling souls downward, and the text is still read aloud in Orthodox monastic refectories throughout Great Lent. Step 28, on prayer, is a foundational source for hesychast practice and directly shaped the Jesus Prayer tradition.