When I was a teenager I alienated my best friend. I had been dabbling in witchcraft. You do not need to believe in the power of darkness. You only need to believe that I believe. As a result of my search for power(this is why many teenagers experiment with witchcraft), I had gained access to an evil presence. That is not the miracle.
My best friend (whom I had alienated) called me out of the blue. He knew that I was in trouble and would not listen to my lies that I was fine. He had been called by God to check on me; to help me.
When my friend came over, he prayed with me. He taught me the rosary and we prayed on our knees together. I never had a problem with an evil presence since. It was several years before I saw my friend again. I have always been grateful for his intervention and for the power that called him to my aid.
The Miraculous Life of Brenda Lee 