As a Christian, this belief is certainly not based on the facts or the Bible. At what point does it actually become the blood and body of Christ?
As a Christian, this belief is certainly not based on the facts or the Bible.
It very much is. In John 6 Jesus gives a lengthy discourse on the fact that his flesh is real food and his blood is real drink, and consuming both is essential to obtaining eternal life. We know he is not speaking figuratively because of the reaction of his disciples.
Verse 52: At this the Jews quarreled among themselves, saying "How can he give us his flesh to eat?"
Instead of comforting them and telling them He was only speaking figuratively, Jesus reiterates and further emphasizes His point. His disciples responded, "How can anyone take this seriously?" To which Jesus responded, "Does it shake your faith?" After this many of his disciples left him; the only time any followers left due to His teachings. Again, Jesus did not dissuade them.