Your ignorance is not uncommon, and better yet, it is curable!!
What does the bible say?
1 Cor 11
For I received from the Lord what I also delivered to you, that the Lord Jesus on the night when he was betrayed took bread, 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." 25 In the same way also the cup, after supper, saying, "This cup is the new covenant in my blood. Do this, as often as you drink it, in remembrance of me." 26 For as often as you eat this bread and drink the cup, you proclaim the Lord's death until he comes. 27 Whoever, therefore, eats the bread or drinks the cup of the Lord in an unworthy manner will be guilty of profaning the body and blood of the Lord. 28 Let a man examine himself, and so eat of the bread and drink of the cup. 29 For any one who eats and drinks without discerning the body eats and drinks judgment upon himself.
What does discern the body mean?
Why did he believe that?
John 6
49 Your fathers ate the manna in the wilderness, and they died. 50 This is the bread which comes down from heaven, that a man may eat of it and not die. 51 I am the living bread which came down from heaven; if any one eats of this bread, he will live for ever; and the bread which I shall give for the life of the world is my flesh." 52 The Jews then disputed among themselves, saying, "How can this man give us his flesh to eat?" 53 So Jesus said to them, "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; 54 he who eats my flesh and drinks my blood has eternal life, and I will raise him up at the last day. 55 For my flesh is food indeed, and my blood is drink indeed. 56 He who eats my flesh and drinks my blood abides in me, and I in him. 57 As the living Father sent me, and I live because of the Father, so he who eats me will live because of me. 58 This is the bread which came down from heaven, not such as the fathers ate and died; he who eats this bread will live for ever."
What did early Christians believe?
circa 150 A.D.: St. Justin Martyr,
First Apology, 66
St. Justin is talking about the Mass, and he has described the consecration and communion. Then he saysWe call this food Eucharist; and no one else is permitted to partake of it, except one who believes our teaching to be true and who has been washed in the washing which is for the remission of sins annd for regeneration, and is thereby living as Christ has enjoined. For not as common bread nor as common drink do we receive these; but since Jesus Christ our Savior was made incarnate by the word of God and had both flesh and blood for our salvation, so too, as we have been taught, the food which has been made into the Eucharist by the Eucharistic prayer set down by Him, and by the change of which our flesh and blood is nourished, is both the flesh and blood of that incarnated Jesus.
St. Augustine, Explanations on the Psalms, [33, 1, 10] A.D. 392-418:
`And he was carried in his own hands [3 Kgs 20:13 LXX? corrupted].' But, brethren, how is it possible for a man to do this? Who can understand it? Who is it that is carried in his own hands? A man can be carried in the hands of another; but no one can be carried in his own hands. How this should be understood literally of David, we cannot discover; but we can discover how it was meant of Christ. For Christ was carried in His own hands, when, referring to His own Body, He said: `This is My Body.' For He carried that Body in His hands.
St. Augustine, Explanations on the Psalms, [98, 9] A.D. 392-418:
And adore the footstool of His feet, because it is holy [Psalm 98:9, LXX 99:9]. . .In another place in the Scripture it says: `The heavens are my throne, but the earth is the footstool of My feet' [Isa 66:1] Is it the earth, then, that He commands us to adore, since in this other place the earth is called the footstool of God's feet? . . . I am put in jeopardy by such a dilemma (Anceps factus sum): I am afraid to adore the earth lest He that made heaven and earth condemn me; again, I am afraid not to adore the footstool of My Lord's feet, but because the Psalm does say to me: `Adore the footstool of My feet.' I ask what the footstool of His feet is; and Scripture tells me: `The earth is the footstool of my feet.' Perplexed, I turn to Christ, because it is He whom I seek here; and I discover how the earth is adored without impiety, how without impiety the footstool of His feet is adored. For He received earth from earth; because flesh is from earth, and He took flesh from the flesh of Mary. He walked here in the same flesh, and gave us the same flesh to be eaten unto salvation. But no one eats that flesh unless he adores it ; and thus it is discovered how such a footstool of the Lord's feet is adored; and not only do we not sin by adoring, we do sin by not adoring.