Monks climbing to heaven or being pulled to hell, twelfth-century illustration of The Ladder of Divine Ascent, a seventh-century guide to ascetic and mystical living, by St. John Climacus. Saint Catherine's Monastery, Mount Sinai, Egypt.

Monks climbing to heaven or being pulled to hell, twelfth-century illustration of The Ladder of Divine Ascent, a seventh-century guide to ascetic and mystical living, by St. John Climacus. Saint Catherine's Monastery, Mount Sinai, Egypt.