Why is the Eucharist a Mystery?

How can we grow in our understanding of something that’s supernatural? Through reason and Scripture, Bishop explains.USCCB Document on the Eucharist:https://www.usccb.org/resources/mystery-eucharist-life-churchOn the Eucharist (Ecclesia De Eucharistia) by Pope John Paul II:https://amzn.to/3XeQs4Whttps://www.vatican.va/content/john-paul-ii/en/encyclicals/documents/hf_jp-ii_enc_20030417 _eccl-de-euch.html The Sacrament of Charity (Sacramentum Caritatis) by Pope Benedict XVIhttps://www.vatican.va/content/benedict-xvi/en/apost_exhortations/documents/hf_ben-xvi_exh_20070222_sacramentum-caritatis.htmlhttps://amzn.to/3jAYCXEThe Eucharist: Mystery of Presence, Sacrifice, and Communion by Lawrence Feingoldhttps://amzn.to/3I5ME1j