ANSWER BY FR. JOHN HARDON, S.J. : Much of what I have spoken and written, certainly since my graduate studies in Rome, has been deeply motivated by what I understood was the essential message at Fatima.
I learned from Fatima that Our Lady, having first obtained from her Son, to work a physical miracle continues obtaining from Him other physical miracles like at Lourdes,
but she especially wants her Son to work moral miracles of surpassing the natural laws of the human will. I believe it is more difficult to convert a hardened sinner than it is to raise a Lazarus from the dead.
And Mary is capable of working such miracles. My priesthood has taught me devotion to Our Lady and expecting her to work miracles of conversion. She'll do it. I believe that Fatima is especially the sign in our age of the moral miracles that God wants to work in a proud, self-preoccupied, pleasure-intoxicated mankind. Miracles are being worked. I tell people to expect miracles. And the most important kind of miracles you should ask God to work through Our Lady's intercession.
Link (here) to the full question and answer piece.