Take a look at the picture at the top of this article. It shows Siddhartha Gautama at the moment when he became enlightened and became Buddha. I find this is a brilliant image. 

When you look closely, you'll notice that inside the circle there is light and beauty. Outside of it are the demons, tempting and threatening Siddhartha in the darkness.

All of that light and beauty, all of that protection from the darkness and fear, Siddhartha created from within himself. And you can, too.