It is security from true threats, from true problems, from true darkness. This peace is a peace that is fierce. It protects your heart. It protects your mind.
The blog, Femina, which I follow, features posts by Nancy Wilson (wife of Douglas Wilson, but NOT the guitarist from the band Heart, although I love her, too) and her daughters. I've read many of the Wilson's books on Biblical marriage and parenting and I love them.