The illness until death.. a Christian psychological display for discipline and revival

The main issue in the book "Illness unto Death" revolves around a fundamental question: Who is man? It aims to address the issue of despair, sin, and faith, and the existential and moral problems that manifest from them, which face man in his life, as psychology cannot be separated from anthropology and ethics. Although the book includes a subtitle "Repetition and Revival," Kierkegaard added the phrase "Revival" to the title at the last moments before the book's publication. He hinted that the title was "also very contemplative." Kierkegaard borrowed the idea of the title from the Gospel of John, chapter two, which concerns Lazarus. The book does not deal with the issue of illness leading to bodily death, but with spiritual and self-death. Kierkegaard presented in an revealing language what happens to human souls, for example, in nightclubs, in battlefields, in isolation, but not according to these places and their conditions, rather based on the diversity of universal despair that afflicts people in those places. The book consists of two parts: the first psychological, and the second doctrinal, and throughout the book, despair in its various forms is mainly addressed, alongside the topic of sin, which he began to discuss in his book "The Concept of Anxiety." The idea of "despair" appeared early in Kierkegaard's writings; he wrote in his papers in 1636: "Our age is the age of despair." He also discussed this in his book "Either-Or." Later, in his "Non-scientific Postscript," he provided a description of a religious crisis, using the expression "this illness is not unto death; it is a description of the disorder or lack of harmony present in man, who does not know or does not want to know his true relationship with his eternal self."