According to tradition, a messenger came one day into the court of King St. Louis of France — all out of breath from excitement. He exclaimed, "Your Majesty, hurry to the church. A great miracle is taking place!"
"What kind of miracle?" asked the saintly king.
"A great miracle! A priest is saying Holy Mass, and after the consecration, instead of a host, there is visible on the altar Jesus Christ Himself. Hurry before it disappears!"
The king remained quiet, which greatly surprised the messenger. "Well, isn't Your Majesty coming," asked the messenger?
The king responded:
No! Let them who have any doubt about the Real Presence of Our Lord in the Eucharist go and see. As for me, even if I saw Jesus on the altar in His visible form, and touched Him with my hand, and heard His voice, I would not be more convinced than I am now that He is present in the consecrated Host. My faith is sufficient for me! I need no miracle.
King St. Louis' faith is the faith that all Catholics should have, but that's not the case in our modern, cynical world. Surveys show that 70% of American Catholics don't believe in the Real Presence of Christ in the Holy Eucharist.
Enemies of the Catholic Church, meanwhile, claim Catholic belief in His Real Presence is merely a "Catholic invention." They say there's no scriptural proof of what the Catholic Church teaches. Guess what? They're again wrong. Jesus did indeed talk about it in the New Testament.
The sixth chapter of John begins with Jesus feeding 5,000 men with a mere five loaves of bread and two fish. That evening, Jesus worked yet two more miracles. He sent his Apostles across the sea while He went into the hills to pray. Late that night, He came to His Apostles walking on the water. As soon as He got into the boat, it ceased being where it was in the middle of the sea and was suddenly at the intended destination.
The next morning (John 6:22–24), the people who'd eaten the loaves the previous day were surprised to find Jesus waiting there for them. Of course, they wanted to know how He'd arrived ahead of them since He didn't get into the boat with His Apostles.
But Jesus cut right to the chase: "Truly, truly, I say to you, you seek Me, not because you saw signs, but because you ate your fill of the loaves" (John 6:26). Jesus went on to tell them to work for the spiritual food that would get them to Heaven instead of temporal food that spoils. He told them to do this by believing in Him (John 6:29).
These hard-headed followers from the day before now wanted a sign from Him to prove He was worthy of their belief. They told Jesus Moses had given their fathers manna from Heaven to eat. They wanted to know if He could top that!
Jesus explained, "I am the Bread of Life; he who comes to Me shall not hunger, and he who believes in Me shall never thirst" (John 6:35). He went on to explain through verse 40 that He was the bread sent from Heaven by the Father. Indeed, in verse 45 He even quoted a prophet to tell them that He is God and is teaching them!
Up to that point, Jesus' followers understood Him to be speaking symbolically. Jesus took this misconception away from them. He went on to tell them He was, in fact, the bread they would have to eat to inherit eternal life (John 6:51).
But the Jews rejected this notion. "The Jews disputed among themselves, saying, 'How can this man give us his flesh to eat?'
Jesus didn't mince words:
Truly, truly, I say to you, unless you eat the Flesh of the Son of Man and drink His Blood, you have no life in you; he who eats My Flesh and drinks My Blood has eternal life, and I will raise him up on the last day. For My Flesh is food indeed, and My Blood is drink indeed. He who eats My Flesh and drinks My Blood abides in Me, and I in him. As the living Father sent me, and I live because of the Father, so he who eats Me will live because of Me (John 6:52–57).
The people now understood Him to be speaking literally rather than figuratively. His own followers' literal understanding of what Jesus was saying repulsed them: "After this, many of his disciples drew back and no longer walked about with Him" (John 6:66).
Christ didn't call back His lost disciples but instead addressed his Apostles: "Jesus said to the twelve, 'Will you also go away?' Simon Peter answered him, 'Lord, to whom shall we go? You have the words of eternal life; and we have believed and have come to know that You are the Holy One of God'" (John 6:67–69).
The Apostles had been with Him from the beginning. They also understood what He said to be literal. They didn't know how He'd do what He said, but they did believe He would eventually show them … all except Judas.
Notably, in Luke 22:15, Jesus declared, "I have earnestly desired to eat this Passover with you before I suffer."
Does a man who knows he's about to die earnestly desire to eat what he knows will be his last meal? Of course not! But Jesus earnestly desired to give them His Flesh and Blood since He first made the promise:
And He took bread, and when He had given thanks, He broke it and gave it to them, saying, "This is my Body which is given for you. Do this in remembrance of Me." And likewise he took the cup after supper, saying, "This cup, which is poured out for you, is the new covenant in My Blood." (Luke 22:17–20).
With these words during the Last Supper, Jesus finally showed them how He would live in and save those who believe.
The Gospel writers never devoted time and energy to writing about the ordinary. They only focused on the extraordinary. John 6:22–71 is an entire waste of time and energy if Jesus is merely speaking symbolically. And His language is far from symbolic.
The Last Supper narrative is also a waste of time if what is happening there is just a typical Passover meal. Notice, He never said the bread and wine were to represent His Body and Blood, nor that they were symbols of His Body and Blood. Instead, He said, "This is My Body" and "This is My Blood" (Matthew 26:26–28). Both were definitive statements of fact.
Christianity makes absolutely no sense without the Blessed Sacrament. Without the Holy Eucharist, Christianity is nothing more than just another philosophy, like the Eastern mystical philosophies. It's nothing more than a philosophy about how to live a better life.
But that isn't what Christianity is at all. It's the worship of God Almighty, and our Catholic life is obedience to that one true and living God.