Do you know the saying "You are what you eat"?? well the same is true for being cursed just as having a miracle happen! If you believe it, you will become it! Hey, first of all the only people who think they can be cursed are people who believed in the devil and evil, etc. 
Now I am very spiritual and was raised catholic, obviously not by choice, i just could not get convinced by one fact, if you do harm and you tell your priest, say they right prayers, you are FORGIVEN??? As a believer of our criminal system (yes, it needs work and it;s not perfect but the theory works) if you commit murder and you repent all is well an you go to heaven??? what about the soul of the person you killed, did they forgive you? did their family? is it not a crime?Sorry here on earth it is, no matter how highly your particular higher spirit forgives you, you are still going to jail. Miracles do happend, people who have cancer do get cured, is it prayer? is it the belief of the person that if they do something, prayer, meditation, etc. It is simply that YOU BELIEVE!!! no matter what religion you practice, if you believe, it will happend. Life is simple, be a good citizen, be honest, be humble, be compassionate and you will go where you want to go when you die. Do bad things happend to good people, yup. How do explain what happens to children, when they have not lived long enough to SIN. BELIEVE IN GOOD, BE GOOD!