Introduction. The relevance of the research problem lies in the fact that in psychological science some theorists involved in the study of emotions believe that the states of emotional experience are unchanged. Since the principles of immutability and constancy of emotional experience are crucial for understanding consciousness, an important type of which in humans are emotions, since they influence their perceptual and cognitive processes and behavior.Purpose setting. There are unique classes of emotional phenomena, such as mood, feelings, which manifest themselves in the general background of events and persist after their completion. It is precisely such background experiences that are the basis of the emotional assessments studied in this work. Moral and aesthetic experiences associated with art, human cognition through art, ensure his development as a subject of moral relations to other people and to himself, contribute to changes in his moral experience and personal (including emotional) characteristics.Methodology and methods of the study was carried out on the basis of the study of philosophical, sociological, psychological and pedagogical scientific and methodological literature, which made it possible to develop the concept of psychological foundations. Results. Our research is educational in the management of emotions and feelings. The dynamic development of the results of our study of the emotional states of a personality, its experiences according to the author’s methods in the form of keeping an emotional diary since 1997, contributing to the self-development of a personality as a component of personal maturity, is presented.Conclusion. The practical value of the research within the framework of general psychology lies not only in the fact that the main directions for optimizing the process of emotional and moral development of a personality are identified, recommendations are substantiated for improving the specialization of people working with children, improving their professional skills, but also in developing a program for the psychological study of emotional and moral personality development (EMPD), diagnostics of specific and nonspecific emotional phenomena, which ensures timely correction of the EMPD process. The data obtained can be taken into account in schools and universities in the process of forecasting the moral atmosphere among adolescents and students, as well as the moral atmosphere of society in general.