Every effect has a cause. Every intelligent effect has an intelligent cause. The power of the intelligent cause is proportional to the greatness of the effect. 

Containing the narrative of the material or intelligent manifestations of the Spirits, apparitions, evocations, etc. as well as all the news about Spiritism. The teaching of the Spirits about matters of the visible and invisible worlds, about sciences, moral, the immortality of the soul, the nature of human beings as well as their future. The history of Spiritism in antiquity; its relationship to magnetism; the explanation of popular legends and beliefs, the mythology of all peoples, etc.