The Concept of Anxiety
All of Kierkegaard's books have either a preface, dedication, or prayer at the beginning. This book includes a lengthy introduction. "The Concept of Anxiety" was published on exactly the same date as "Prefaces", June 17, 1844. Both books deal with Hegel’s idea of mediation. Mediation is a common thread throughout Kierkegaard’s works. His work up to this point was to show that faith was being mediated by knowledge. Here he takes up the questions of sin and guilt.
The Concept of Anxiety
However, Kierkegaard mentions that anxiety is a way for humanity to be saved as well. Anxiety informs us of our choices, our self-awareness and personal responsibility, and brings us from a state of un-self-conscious immediacy to self-conscious reflection. (Jean-Paul Sartre calls these terms pre-reflective consciousness and reflective consciousness.) An individual becomes truly aware of their potential through the experience of anxiety. So, anxiety may be a possibility for sin, but anxiety can also be a recognition or realization of one's true identity and freedoms. Alternatively, sin exists in the very resolution of anxiety through right and wrong; why to embrace anxiety is to not pass judgement.