u/Ok-Explanation-3606

I do not mean to be disrespectful in any way, but could someone please explain the whole drinking blood and eating flesh thing to me? I get that it is a part of Catholicism, but I honestly do not get how people are okay with it. Am I the only person who finds it odd? I mean, each religion has its quirks, but this one is just strange. Today, if you did this, it would be seen as cult-like or cannibalism. Again, I sincerely mean no disrespect; I simply do not understand it.