When instituting the Memorial, Jesus did not miraculously change the bread and the wine into his literal flesh and blood. Instead, he said of the bread: “This means my body. ”
وَقَالَ عَنِ ٱلْخَمْرِ :‏ « هٰذِهِ تُمَثِّلُ ‏ ‹ دَمِي ٱلَّذِي لِلْعَهْدِ › ،‏ ٱلَّذِي يُسْكَبُ مِنْ أَجْلِ كَثِيرِينَ » .‏