The First Catholic Mass was The Last Supper. The second Catholic Mass? It took place on the Road to Emmaus. Luke 25-34 includes:
“And it happened that, while he was with them at table, He took bread, said the blessing, broke it, and gave it to them. With that their eyes were opened and they recognized Him, but He vanished from their sight. . . . Then the two recounted what had taken place on the way and how He was made known to them in the breaking of bread.”
St. Paul affirms that “the breaking of bread” means that Transubstantiation is taking place. St. Paul describes that clearly in 1 Cor 10:16. “This bread that we break is it not The Body of Christ.”
In every Catholic Mass, “the breaking of the bread” allows us to obey the clear call to Catholic Communion that Jesus repeated 14 times: “If you do not eat My Body and drink My Blood you do not have life in you.”
When the two Disciples on The Road to Emmaus met with Jesus, they did not know Who He was. At “the breaking of the bread”, they knew.
How? The “life” that Jesus promised entered into them. Then, they saw what they could not see until they ate His Body and had “life in” them.
In every Catholic Mass since The Last Supper, bread and wine become His Body and Blood. It is so utterly unnatural that partial believers are not able to comprehend it.
Because they do not obey Jesus fully enough to do what is necessary to receive His Actual Body and Blood in Catholic Communion, they cannot have “life in” them.
They may think they have accomplished enough by merely “believing in Jesus and The Bible”. We must believe enough to obey.
Still, we must remind them of what Jesus said so often: “If you do not eat My Body and drink My Blood you do not have life in you.”
The alternatives: Only those at The Last Supper or on The Road to Emmaus would “have life” in them.
It is more reasonable to believe that He Founded One Church so that obedient believers in every generation could “have life” in them.