Final answer:
The story of Simon Peter's vision is depicted twice in the image using continuous narration, an artistic device commonly used in medieval art. The repetition of the story provides a different perspective and emphasizes its significance.
Step-by-step explanation:
The story of Simon Peter's vision is depicted twice in this image using a visual technique called continuous narration. This artistic device was commonly used in medieval art to show multiple moments within one scene. On the left side, Christ is shown offering the Eucharistic bread to six apostles, while on the right side, he offers the Eucharistic wine to six more apostles. The repetition of the story in the image is not meant to confuse readers but to provide a different perspective and emphasize the significance of the vision