The Sickness Unto Death Book by Søren Kierkegaard

The Sickness Unto Death by Søren Kierkegaard is a philosophical and psychological work that explores the concept of despair and its relation to the human condition. Kierkegaard examines the nature of the self, the struggle between the finite and the infinite, and the tension between the individual and the divine. Despair is portrayed as a sickness of the soul, arising from a failure to reconcile one's true self with their existential reality and relationship with God.