What are miracles? Did they happen in the past? Do they happen now?

If not, then what are we to do with the miracles of the Bible, or the miraculous stories we hear on the news, social media, or from our friends and family? Do we take the cynical route and write off everybody as crazy or a fool who believes in miracles or claims to have experienced one? Or do we take the gullible route and believe everything is a miracle, even that parking spot I prayed for? Is there a third way?