Nightmare

Is a nightmare can be a reality? What do you think guys? Some people says that it can be a reality, but the other says it won't be happen to you in your true life. For me, it depends on your way of thinking. If you do believe it can be a reality, it would be happened. But, if you don't believe it, it wouldn't happen to your true life. Sure, I ever had a nightmare, but I make myself to not believe in it, because it was just a nightmare. It just happened in your dream, and won't happened in your reality. A nightmare is horrible, so I can't let it happened in my reality, I just can't imagine how awful I am if it does happened in my life. So guys, if you don't want it to be true, just believe that it was just a nightmare.