Do note that the Holy Spirit makes present the mystery of Christ, not the priest.
The Epiclesis ("invocation upon") is the intercession in which
the priest begs the Father to send the Holy Spirit the Sanctifier, so that the offerings may become the body and blood of Christ and that the faithful by receiving them, may themselves become a living offering to God.23
In the epiclesis,
the Church asks the Father to send his Holy Spirit (or the power of his blessing178) on the bread and wine, so that by his power they may become the body and blood of Jesus Christ and so that those who take part in the Eucharist may be one body and one spirit Do note that the ritual and the belief in the True Presence of Christ in the Eucharist is shared by Catholics, Orthodox, Copts, Armenians, Assyrians, even Lutherans (yes, there is a difference in the 'how' but Lutherans too believe that Christ's body and blood are REALLY present in the Eucharist), so this is not just "a Catholic thing".
This ritual is also something practised by the earliest of all Christians.
You can refer the Didache written in AD 70 (Apostolic Times) which says
Assemble on the Lord’s day, and break bread and offer the Eucharist....Anyone who has a difference with his fellow is not to take part with you until he has been reconciled, so as to avoid any profanation of your sacrifice ...For this is the offering of which the Lord has said, ‘Everywhere and always bring me a sacrifice that is undefiled, for I am a great king, says the Lord, and my name is the wonder of nations’ by the Eucharistic celebration we already unite ourselves with the heavenly liturgy and anticipate eternal life, when God will be all in all 1 Cor 15:28
When he has done this, then the Son himself will be made subject to him who put everything under him, so that God may be all in all.
It is called: Eucharist, because it is an action of thanksgiving to God. the Greek words eucharistein (Luke 22:19
19 And he took bread, gave thanks and broke it, and gave it to them, saying, “This is my body given for you; do this in remembrance of me. --> 1 Cor 11:24
and when he had given thanks, he broke it and said, “This is my body, which is for you; do this in remembrance of me)
and eulogein (Mt 26:26
26 While they were eating, Jesus took bread, and when he had given thanks, he broke it and gave it to his disciples, saying, “Take and eat; this is my body.” --> Mk 14:22
22 While they were eating, Jesus took bread, and when he had given thanks, he broke it and gave it to his disciples, saying, “Take it; this is my body) recall the Jewish blessings that proclaim - especially during a meal - God's works: creation, redemption, and sanctification.
9 The Lord's Supper, because of its connection with the supper which the Lord took with his disciples on the eve of his Passion and because it anticipates the wedding feast of the Lamb in the heavenly Jerusalem (1 Cor 11:20
20 So then, when you come together, it is not the Lord’s Supper you eat, --> Rev 19:9
9 Then the angel said to me, “Write this: Blessed are those who are invited to the wedding supper of the Lamb!” And he added, “These are the true words of God.”
The Breaking of Bread, because Jesus used this rite, part of a Jewish meat when as master of the table he blessed and distributed the bread (Mt 14:19
19 And he directed the people to sit down on the grass. Taking the five loaves and the two fish and looking up to heaven, he gave thanks and broke the loaves. Then he gave them to the disciples, and the disciples gave them to the people. --> Mt 15:36
36 Then he took the seven loaves and the fish, and when he had given thanks, he broke them and gave them to the disciples, and they in turn to the people.)
It is by this action that his disciples will recognize him after his Resurrection (Lk 24:13-35 When he was at the table with them, he took bread, gave thanks, broke it and began to give it to them. 31 Then their eyes were opened and they recognized him, and he disappeared from their sight.)
and it is this expression that the first Christians will use to designate their Eucharistic assemblies (Acts 2:42
42 They devoted themselves to the apostles’ teaching and to fellowship, to the breaking of bread and to prayer. --> Acts 2:46
46 Every day they continued to meet together in the temple courts. They broke bread in their homes and ate together with glad and sincere hearts --> Acts 20:7
7 On the first day of the week we came together to break bread. Paul spoke to the people and, because he intended to leave the next day, kept on talking until midnight. --> Acts 20:11
Then he went upstairs again and broke bread and ate. After talking until daylight, he left.
by doing so they signified that all who eat the one broken bread, Christ, enter into communion with him and form but one body in him (1 Cor 10:16-17
16 Is not the cup of thanksgiving for which we give thanks a participation in the blood of Christ? And is not the bread that we break a participation in the body of Christ? 17 Because there is one loaf, we, who are many, are one body, for we all share the one loaf. This is called
The Holy Sacrifice because it makes present the one sacrifice of Christ the Savior and includes the Church's offering. the terms holy sacrifice of the Mass, "sacrifice of praise," spiritual sacrifice, pure and holy sacrifice are also used (as this is the self-same ONE-time Sacrifice of Christ)
- Heb 13:15; ⇒ Through Jesus, therefore, let us continually offer to God a sacrifice of praise—the fruit of lips that openly profess his name.
- 1 Pet 25; ⇒ but the word of the Lord endures forever And this is the word that was preached to you
- Ps 116:13, ⇒ I will lift up the cup of salvation and call on the name of the LORD.
- Ps 116:17; ⇒ I will sacrifice a thank offering to you and call on the name of the LORD.
- Mal 1:11 My name will be great among the nations, from where the sun rises to where it sets. In every place incense and pure offerings will be brought to me, because my name will be great among the nations,” says the LORD Almighty.
since it completes and surpasses all the sacrifices of the Old Covenant.
From the beginning the Church has been faithful to the Lord's command. of the Church of Jerusalem it is written:They devoted themselves to the apostles' teaching and fellowship, to the breaking of bread and the prayers.... Day by day, attending the temple together and breaking bread in their homes, they partook of food with glad and generous heart
Acts 2:42-46
LOL. You just keep blathering don't you? Never once addressing the RCC's tampering with Scripture. Chew on these:
"Now, if ‘everything that entereth into the mouth goes into the belly and is cast out into the drought,’ even the meat which has been sanctified through the word of God and prayer, in accordance with the fact that it is material, goes into the belly and is cast out into the draught, but in respect of the prayer which comes upon it, according to the proportion of the faith, becomes a benefit and is a means of clear vision to the mind which looks to that which is beneficial, and it is not the material of the bread but the word which is said over it which is of advantage to him who eats it not unworthily of the Lord. And these things indeed are said of the typical and symbolical body. But many things might be said about the Word Himself who became flesh, and true meat of which he that eateth shall assuredly live for ever, no worthless person being able to eat it; for if it were possible for one who continues worthless to eat of Him who became flesh, who was the Word and the living bread, it would not have been written, that 'every one who eats of this bread shall live for ever.’” Origen, Commentary on Matthew, On Matthew 11:14
“For so did God in your own gospel even reveal the sense, when He called His body bread; so that, for the time to come, you may understand that He has given to His body the figure of bread, whose body the prophet of old figuratively turned into bread, the Lord Himself designing to give by and by an interpretation of the mystery.” - Tertullian, Against Marcion 3.19
"When He so earnestly expressed His desire to eat the passover, He considered it His own feast; for it would have been unworthy of God to desire to partake of what was not His own. Then, having taken the bread and given it to His disciples, He made it His own body, by saying, “This is my body,” that is, the figure of my body. A figure, however, there could not have been, unless there were first a veritable body…Thus did He now consecrate His blood in wine, who then (by the patriarch) used the figure of wine to describe His blood.” -Tertullian, Against Marcion 4. 40
"“Instead of a bloody sacrifice, He has appointed that reasonable and unbloody mystical one of His body and blood, which is performed to represent the death of the Lord by symbols.” -Apostolical Constitutions, 6.23
Be ye always thankful, as faithful and honest servants; and concerning the eucharistical thanksgiving…Do thou, O Lord Almighty, everlasting God, so gather together Thy Church from the ends of the earth into Thy kingdom, as this corn was once scattered, and is now become one loaf. We also, our Father, thank Thee for the precious blood of Jesus Christ, which was shed for us and for His precious body, whereof we celebrate this representation, as Himself appointed us, “to show forth His death.” For through Him glory is to be given to Thee for ever. Amen.” -Apostolical Constitutions, 7.25
“…who forbids us to think of the morrow; who, though He is said to have hungered and thirsted, and to have gone frequently to various meals, except in celebrating the mystery whereby He represented His passion, or in proving the reality of His body is nowhere described as ministering to His appetite…” -Jerome, Against Jovinanius 2.17
“And in the history of the New Testament by that so great and so wonderful forbearance of our Lord; in that He bore so long with him as if good, when He was not ignorant of his thoughts; in that He admitted him to the Supper in which He committed and delivered to His disciples the figure of His Body and Blood; finally, in that He received the kiss of peace at the very time of His betrayal; it is easily understood how Christ showed peace to.” -Augustine, On the Psalms, Psalm 3:1
“”But Jesus, knowing in Himself that His disciples murmured at it,”-for they so said these things with themselves that they might not be heard by Him: but He who knew them in themselves, hearing within Himself,-answered and said, “This offends you;” because I said, I give you my flesh to eat, and my blood to drink, this forsooth offends you. “Then what if ye shall see the Son of man ascending where He was before?” What is this? Did He hereby solve the question that perplexed them? Did He hereby uncover the source of their offense? He did clearly, if only they understood. For they supposed that He was going to deal out His body to them; but He said that He was to ascend into heaven, of course, whole: “When ye shall see the Son of man ascending where He was before;” certainly then at least, you will see that not in the manner you suppose does He dispense His body; certainly then, at least, you will understand that His grace is not consumed by tooth-biting.” -Augustine, Homilies on the Gospel of John, Tractate XXVII. 3