In ‘The Phantom World; or, The philosophy of spirits, apparitions, &c, &c, ‘ Augustin Calmet delves into the realms of the supernatural with a meticulous examination of spirits, phenomena, and the essence of apparitions. Drawing on a vast array of historical texts, folklore, and religious traditions, Calmet adopts an empirical and rational approach that was characteristic of the Enlightenment period. His literary style combines rigorous analysis with engaging narrative, making complex metaphysical ideas accessible to readers. The book serves not only as a treatise on the unseen but also as a reflection of the era’s fascination with the intersection of reason and mysticism. Augustin Calmet (1672-1757), a Benedictine monk and biblical scholar, was profoundly influenced by the intellectual fervor of his time. His academic pursuits, particularly in theology and philosophy, led him to seek understanding of the supernatural through a lens of scholarly inquiry rather than mere superstition. Calmet’Äôs dedication to cataloging supernatural beliefs reveals his desire to reconcile faith with reason, making him a pivotal figure in Enlightenment thought. For readers intrigued by the supernatural and its philosophical implications, Calmet’s ‘The Phantom World’ is an enlightening exploration that challenges preconceived notions of reality. This work appeals not only to scholars of theology and philosophy but also to those entranced by ghostly folklore and the complex relationship between belief and rationality. Dive into its pages for a profound journey through the unseen.