And do you have actual scientific documentation to back these up?
The healings at Lourdes occurred between 1858 and the present The latest was in 2005, I believe), but only four of them have been since 1978. So most of them happened in times when our medical knowledge was far more primitive than what we have now.
And if you have some valid scientific source that shows a communion wafer turned into actual cardiac tissue, I'd love to see it.
There's nothing supernatural about out of body experiences. We can create OBEs at will.
Out-of-body experience - Wikipedia
There have been lots of bleeding statues, so much so that the Catholic Church is very reluctant to claim them as miracles. Too often they have been found to be hoaxes or there are perfectly natural explanations. Is there some investigation which has eliminated these possibilities when it comes to the bleeding statue of Cochabamba?
And I can find very few sources regarding Alexandrina da Costa. And what I can find is that there was only one person observing her the entire time, and surely he must have been needed to sleep. One person can not maintain 24 hour observation for the 40 days or so.
So, you have made claims and provided no actual evidence to back them up.
And yet no one is claiming that they know for a fact how it happened, are they? Although if you could provide a link to a scientist who does claim to know for a fact, I'd love to see it.
I love this tactic of trying to turn science into a religion so you can use the "Well, science is just as bad as religion is!" argument.
(By the way, I used the word "you" there in a general way, I wasn't referring specifically to you in particular, Mike, since I have seen many people use it.
I personally hold the position that when the theory and the evidence disagree, we need to examine both. Such disagreement could be caused by the theory being wrong, and it could be explained by the evidence being flawed.
You have not provided any forensic evidence for any eucharist miracle. If you would care to do so, I'll be happy to take a look at it.