Paul S�dir (born Yvon Le Loup; 2 January 1871 - 3 February 1926) was a French author, professor, banker, and mystic noted for his extensive work on esotericism and Christian mysticism. A student of G�rard Anaclet Vincent Encausse, better known as Papus, founder of the Martinist Order, into which S�dir was initiated. S�dir's first text, Les Miroirs Magiques (Magic Mirrors), was published in 1894 by Lucien Chamuel. This work, along with others like Les Temp�raments et la Culture psychique (1894), Les Incantations (1897), and La M�decine occulte (1900), reflects his profound knowledge in various domains of esotericism, including Kabbalah, astral light, and magical practices. In this collection of two of S�dir's works, Austin Avison introduces Paul S�dir, situating him in the exciting period of societal and cultural changes during the pre-war years in Europe. Avison then offers a translation of S�dir's Dreams: Theories-Practice-Interpretation, a short discourse of how dreams function, their art, and a list of dream interpretations, and finally his translation of Magic Letters, which offers an insight into S�dir himself not only through his own prologue, but also in the collection of letters he curated for the collection. These two texts, along with S�dir's other contributions, marked a significant chapter in the development of French esotericism in the early 20th century.