We see that “Son of Man” is capitalized, which presumes that it is a title given to Jesus Christ. However, if one were to take this verse literally and dissect its meaning, well, most of us would not consider Jesus Christ to be the “Son of Man”. Don’t we all consider Him the Son of God? So who is the Son of Man? Why would Jesus Christ be referring to Himself in this way? After all, if the biblical story of Jesus’s birth is any indication, He was not even born from a man but from a virgin woman and the holy spirit in the “Immaculate conception.” Of course, “man” is usually the term used to include all of humanity (mankind), so this could easily be explained away. And since Jesus is not one to boast about His heritage coming from God, He states also that He came from man.
But, as many confused or simply immoral groups will pursue, one can misconstrue any verse and twist its meaning to suit their own agenda. So now this “Son of Man” title can literally refer to ANYONE. “Unless you eat the flesh of the Son of Man (any human being) and drink His (in some translations, “His” is not capitalized) blood, you have no life in you.”
And while people may laugh and scoff at the idea, the history of vampirism is a very real ideology, and there are some that truly believe that in order to have a long and healthy life, one must consume another being’s flesh and drink their blood.
History of Vampires
Even if ‘vampires’ in the traditional sense don’t really exist, there are still many people that believe that consuming other human being’s flesh/blood will give them a longer lifespan and/or give them mystical powers. There are also pagans/witches/warlocks… even misguided souls that have reverted to using ‘blood magic’ to help them with their woes or any other number of transgressions or desires:
Practicing Witchcraft: What You Should Know About Blood Magic