Sould we believe in visions of God, the Theotokos, Heaven, Hell and others that are said to have been had by Roman Catholic saints? Our Church does not venerate heretics' saints, and while some issues, such as whether or not the Body and Blood of Christ is present in heretical churches, is a matter of contention, some people will vigorously deny sacraments outside the true Church. Now, one of the great defenders of this last idea is St. Bishop Nikolai Velimirovich, who wrote in his tract "Do We Have a Common God with the Papists?" that the visions of Roman Catholics are just delusion and do not come from God. What do you think? Some of what I've read about, for example, St. Frances of Rome (1384-1440. She is supposed to have seen hell, to have had her Guardian Angel follow her around as a boy to console her for losing a child, and to have predicted various things, but there is also a claim that her visions of the Life of Christ may have not been 100% historical)
and St. Catherine of Sienna (a great RC ascetic) are visions that sound like they might be real. Are they to be believed or not?
I'm not really thinking of Fatima here. I read a good article which suggests that this was a case of some kind of "mass hysteria" or a similar phenomenon experienced by impressionable children and other pious folk. Didn't that vision promote the RC church and the doctrine of the Immaculate Conception? If so, it must either be a mental thing, or a demonic vision. I'm thinking of visions experienced by aescetics who, though RC, lead apparently rather Orthodox lives, such as the ones mentioned above.
What about the phenomenon of stigmata? Do the Orthodox ever experience them?