"While they were eating, Jesus took bread, said the blessing, broke it, and giving it to his disciples said, "Take and eat; this is my body" --Matt 26:26.
"We should never again use the expression, 'When Jesus was on earth' or think of Him as being only in heaven, Jesus is still on earth." ... "While all the sacraments confer grace, the Eucharist contains the author of grace, Jesus Christ Himself" --Fr. John Hardon, S.J.
Other than the line of Scripture, your post depicted a doctrine of man or demon.
The point of the supper is to remember Christ. He is not outlining a magical ceremony here.
That is so glaringly unscriptural as to be blasphemous. How can the RCC seriously say it wrote the Bible and teach doctrines that are so contrary to it?
Romans 6:9-10 For we know that since Christ was raised from the dead, he cannot die again; death no longer has mastery over him. The death he died, he died to sin once for all; but the life he lives, he lives to God.
Hebrews 7:26-28 Such a high priest meets our needone who is holy, blameless, pure, set apart from sinners, exalted above the heavens. Unlike the other high priests, he does not need to offer sacrifices day after day, first for his own sins, and then for the sins of the people. He sacrificed for their sins once for all when he offered himself. For the law appoints as high priests men who are weak; but the oath, which came after the law, appointed the Son, who has been made perfect forever.
Hebrews 9:24-27 For Christ did not enter a man-made sanctuary that was only a copy of the true one; he entered heaven itself, now to appear for us in God's presence. Nor did he enter heaven to offer himself again and again, the way the high priest enters the Most Holy Place every year with blood that is not his own. Then Christ would have had to suffer many times since the creation of the world. But now he has appeared once for all at the end of the ages to do away with sin by the sacrifice of himself. Just as man is destined to die once, and after that to face judgment, so Christ was sacrificed once to take away the sins of many people; and he will appear a second time, not to bear sin, but to bring salvation to those who are waiting for him.
The Holy Spirit is our pledge of future glory.
II Corinthians 1:21-23 21Now it is God who makes both us and you stand firm in Christ. He anointed us, 22set his seal of ownership on us, and put his Spirit in our hearts as a deposit, guaranteeing what is to come.