Addressing the problem of seeking peace of mind in a stressful world, this book challenges the belief that all anxiety is bad, and argues that, in its proper place, it can lead to self-discovery. The author presents an understanding of anxiety as three distinct yet related experiences: "natural anxiety", the healthy arousal that warns of actual dangers and alerts us to new opportunities; "toxic anxiety", the dysfunctional over-reaction that can result in stress, addiction, or even clinical disorders; and "sacred anxiety", which represents the soul's deepest yearning for meaning and "oneness" with the Creator.