Elia Biezunski is a policy officer under the director of the Centre Pompidou-Metz. An art historian, she collaborated with the museum dedicated to Marc Chagall in Nice to bring together sketches of his stained-glass windows. According to her, the artist significantly contributed to the renewal of Spiritual art. Coming from a non-Christian background, Chagall was able to express a more universal vision of the Bible through his work.