The Master's thesis focuses on the topic of development which represents one of the most important areas of the United Nations. The organization was formally established after the Second World War with the aim to preserve peace and security in the world, but its conception had already began during the war. Although the organization is best known for peacekeeping operations, it devotes the largest share of resources to economic and social development. The development decades, that the organization gradually developed and realised, were a major contribution to the understanding of the concept of development (from a strictly economic to multidisciplinary). These decades were followed by the Millennium Development Goals. They were the first measurable goals – with the help of indicators it was possible to measure and assess their progress. In 2015 they were replaced by the Sustainable Development Goals. Neither the development decades nor the Millennium Development Goals were able to fully realize the set goals. There are various reasons for this, but this Master’s thesis offers an additional aspect of understanding the functioning of the United Nations and its inability to meet the set goals. The measured electromagnetic field of the organization shows that it is unable to function in accordance with the principles and goals written in the Charter due to a lack of energy flow. This problem can only be solved by transforming the people’s consciousness and by a heartful (not only rational) commitment to the attainment of goals.