""The Soul's Progress According to the Rosicrucians"" is a book written by an anonymous author using the pen name ""Incognito, Magus."" It delves into the spiritual teachings of the Rosicrucian Order, a secret society that originated in Europe during the 17th century. The book explores the concept of the soul's journey through various stages of spiritual development, as understood by the Rosicrucians. It discusses the importance of spiritual practices...