At various times we get letters from persons thanking Benedict XVI - because they had asked him to pray for them in a situation of great difficulty or a serious health crisis, which they subsequently overcame. And they say this was thanks to Pope Benedict's prayers... And so they thank him. I think faith produces miracles, and if the prayer is strong, it can produce miracles. I think that is an experience with all believers.... The most important thing about these phenomena is to distinguish the false from the true - a 'mystic' experience from a true miracle. There are also varied cases of apparitions and private revelations... Personally, I am very cautious. We must not forget that even Lucifer, the angel of light turned Satan, can deceive masterfully. Therefore, it is best to keep calm, be prudent and trust in prayer... However, anyone who prays to receive a private revelation or a special experience is looking for something extraordinary rather than trusting in the power of prayer.