Kierkegaard devoted two book to the concept of
sin ("Sickness Unto Death" and "The Concept of Dread").
Knowing sin is key in Kierkegaard's view for a full religious understanding. In
describing sin Kierkegaard appeals to Hegelian dialectics which exposes the
dread embedded within the existential manifestations of faith. Getting to know
and acknowledging your own sins for Kierkegaard the way towards faith.