The book "Method of representation in the research of emotions. Metaphysical reflections" reveals the philosophical researches of Rene Descartes on the nature of human feelings, emotions and mental processes. The eminent French philosopher examines questions related to the nature of consciousness, the existence of the soul, and the relationship between mind and body. In his metaphysical reflections, Descartes offers a modern approach to the study of mental phenomena, emphasizing the importance of methods of representation in the experiments of emotions. This book is not only a fundamental work of philosophy, but also an invitation to a fascinating journey through the world of the human mind.