Spiritualism and theosophy are the best additions to Spanish society at the end of the century. Both are influenced by the literary manifestations of the era. The author Emilia Pardo Bazan integrated many stylistic risks in this novel: the visual spectrum, auras, animated objects, premeditated dreams, and transmission of spirits. This does not mean that the author communicates with such doctrines, but rather the opposite it has been noted that her previous few novels tend to have a Christian orientation."