The fish, a primordial symbol of Christianity, has its roots in the early Christian communities, who adopted it as a distinctive and secret sign. The Greek acronym "ICHTHYS" (fish) concealed a profound meaning: "Iesous Christos Theou Yios Soter" (Jesus Christ, Son of God, Savior). This symbol, engraved in the catacombs and on early artifacts, allowed persecuted Christians to recognize each other and profess their faith in secret. Its diffusion is also linked to the miracle of the multiplication of loaves and fishes, narrated in the Gospels, which symbolizes the abundance of divine grace and sharing. The fish thus became an emblem of salvation, faith, and belonging to the Christian community, a constant reminder of the figure of Christ and his message of hope.