Emotional intelligence as a new field in scientific discourse has gained great popularity since its theoretical beginning due to its way of studying the influence and mutual dependence of reason and emotions in all aspects of human life, both private and professional. Its importance is emphasized through its influence and contribution in the process of personal growth, the realization of interpersonal relationships and the achievement of professional success. The concept of emotional intelligence, which includes the ability to identify, understand and manage emotions in oneself and others, becomes the focus of developing psychological research and at the same time represents a significant set of skills in human action. In private life, emotional intelligence serves as an instrument that leads to the development of the general well-being of individuals, which enables them to face stress more easily and take better care of their mental health, and at the same time forms the basis for creating strong interpersonal relationships. In professional life, it is necessary because it allows individuals to more easily navigate the complex dynamics of the workplace. Employees and leaders who possess a high level of emotional intelligence are better prepared to face business challenges and demands, achieve better cooperation in teamwork and motivate their colleagues. Organizations that prioritize emotional intelligence in their business model create an environment that encourages employee productivity, creativity and innovation and reduces employee turnover. Despite numerous criticisms due to its conceptual vagueness, emotional intelligence positively correlates with various aspects of human private and professional life resulting in increased life satisfaction, both personal and professional.