The central themes of Markings are the search for the meaning of life, the relationship between faith and real-world action, and dedication to public service and humanity. The book explores how his spiritual beliefs guided his difficult decisions as Secretary-General of the United Nations. Written in a poetic, concise, and often cryptic style, the book reflects Hammarskjöld's influences from a variety of sources, including Christian mysticism, existential philosophy, and classic Swedish literature. Overall, "Markings" is a profound exploration of personal ethics, spirituality, and self-sacrifice, presenting a true profile of a man who lived his life by strong principles.