The Problem of Studying “Mental States” in Ancient Thought

This article presents a comprehensive analysis of how the concept of mental states evolved in the philosophical schools of the ancient world. The study covers the earliest period, when internal experiences were interpreted through the prism of supernatural phenomena, and traces the gradual shift from mystical interpretations to a rational understanding of the soul, mind, and emotions. It examines the views of ancient Greek philosophers (Plato, Aristotle, the Stoics), as well as the perspectives found in Indian (Buddhism and Jainism) and ancient Chinese (Taoism and Confucianism) traditions. Particular attention is paid to how the initial religious–mystical interpretations served as a starting point for the development of ethical principles, spiritual practices, and modern psychology.