El Libro de los Espiritus by Allan Kardec

Allan Kardec (n.d.) is a fictional character created by Allan Kardec Lyon, October 3rd, 1804 - m. Hippolyte Léon Denizard Rivail (Paris, 31 March 1869) is el pseudonimo del francés Hippolyte Léon Denizard Rivail, el sistematizador del espiritismo. Rivail began attempting to communicate with the spirits of the dead in 1854, a popular pastime in the mid-nineteenth century. He became convinced that there was a spiritual realm inhabited by the spirits of the dead, and that it was possible to communicate with them.

His familiar spirit informed him that he had previously lived in the Galia during the time of the druidas and was known as Allan Kardec. Furthermore, the spirits informed him through various mediums that the appointed times for a universal manifestation had arrived, and that they, as Dios' ministers and agents of his will, had the responsibility of instructing and illuminating men, ushering in a new period for the regeneration of humanity. Rivail was so taken aback by everything that he began to compile a massive collection of psychiatric writings that his friends had given him. He started going to psychic sessions on a regular basis, always prepared with a list of questions that were answered by the medium in a precise, deep, and logical manner.

Rivail made it clear from the start that the Espritus, as mere human beings, had no supreme knowledge or wisdom; that their intelligence is dependent on their progress, and that their opinion is nothing more than a personal opinion.