Greetings. Praying for your grandpa.
If the Church investigated these claims, and they did, you can be certain they are not the work of demons.
Personally, I am indifferent about private revelation. :shrug: So I am probably not the best person to defend them.
But taking a look at Fatima, we know the major miracle to come out of that was the sun “dancing” of which tens of thousands of people witnessed. Then turn to the book of revelation chapter 12:
12 A great sign appeared in heaven: a woman clothed with the sun, with the moon under her feet and a crown of twelve stars on her head. 2 She was pregnant and cried out in pain as she was about to give birth.
The Church has always understood this passage to be referring to Mary and Jesus. Yes it’s the Church as protestants would claim, but when it speaks of individuals, it refers to Jesus and Mary.
Notice the similarities? The woman clothed with the sun…and a dancing sun at Fatima?
And that woman who is battling Satan in Rev 12 was foretold in Genesis 3:15:
Genesis 3:15New International Version (NIV)
15 And I will put enmity
between you and the woman,
and between your offspring[a] and hers;
he will crush** your head,
and you will strike his heel.”**
Notice the word “enmity”…that means like a great amount of active hostility. Mary is a arch enemy of Satan.
Mary is told by Simeon that a sword will pierce her very soul. This is why we hear about her immaculate heart:
[quote]Luke 2:34-35New International Version (NIV)
34 Then Simeon blessed them and said to Mary, his mother: “This child is destined to cause the falling and rising of many in Israel, and to be a sign that will be spoken against, 35 so that the thoughts of many hearts will be revealed. And a sword will pierce your own soul too.”
Understand how the communion of saints works. We are all one body, when one of us sins, it hurts the entire body, that would include the most blessed and Holy woman to ever exist, Jesus Mother.
I would need to investigate further if maybe there is a translation issue in regards to what was said about sinning against her in particular.
I was a protestant for 13 years and some of that time was anti-Catholic. I explored subject after subject with my objections and found reasonable explanations for all of them. I agree with the others here who are warning you about well intended protestant polemic sites. They mean well but you have to understand their position - first of all they have a incomplete bible, second of all they have a fallible understanding of that incomplete bible. And lastly most of them have totally separated themselves from their Catholic roots and the early church. They do real well with what they do have and we shouldn’t deny that, but they lack the total deposit of the faith and this is problematic in regards to proper understanding in conformity with the pillar and foundation of truth 1 Tim 3:15