Søren Kierkegaard's book "Either-Or" is one of the masterpieces of world literature, which dealt with diverse and complex philosophical issues, in a literary style and in a sublime narrative form. In this book, Kierkegaard laid the foundations of existential philosophy, both religious and non-religious. He also linked thought and human life experience, by proposing what are called the three existential stages. Aesthetic, ethical, and religious. The first part, called "A," deals with the aesthetic; He is a depressing, poetic young character. He lives his day superficially. He has great respect for Mozart. He writes poetry and recites treatises "to a fellow dead man." He leaves the impression that he is a poor, miserable person who, despite his youthful youth, sometimes falls into despair, and basically feels that he is done with life. . This part also includes, in addition to "A," the chapter "Al-Ghawi's Diaries," with which the first part of the book concludes. It is not possible to understand the world and life of Kierkegaard and become familiar with his thought without understanding his emotional relationship with Regina Olsen (1822-1904), and his engagement to her, and then He broke off the engagement after one year. Not to mention the great impact this relationship had on him, to the point that it turned into one of the world's famous and immortal love stories. He began to record this in his most important book, "Either-Or." In it, details of Kierkegaard's painful personal experiences with his relationship with Regina are revealed, and the passion, affection, and tormenting longing that followed. The themes of love, longing, jealousy, love, hatred, marital love, and seduction in the life of the aesthetician, then the caricature of love in the life of the petty bourgeois, and the behavior of what he calls narrow-mindedness, represent some of the details of this philosophical-literary work.