St. John Climacus
St. John Climacus, also widely referred to as St. John of the Ladder, is best known for his theological book known as The Ladder of Divine Ascent. The text uses Jacob's ladder as a metaphor for the spiritual life, with each rung on the ladder representing a new virtue gained. The ladder went on to become a popular inspiration for iconography depicting monks ascending a ladder with Jesus at the top welcoming them into eternity.