The spiritualist movement, if we can call it that, which has emerged in the last two centuries and has expanded with spectacular vigor, invading countless areas of knowledge and deepening unbridled, can only inspire good feelings. It seems that, in one fell swoop, experience, seriousness, method and, above all, good faith have been brought together in a number of spirits that can no longer be counted on the fingers, forming a current that cannot be stopped, since it has both the preparation and the spirit needed to assert itself and carry out its mission. What is most striking is the terminology, long banned from serious literature, which is now being used with absolute naturalness after an unexpected invasion. There is no doubt that these days will be marked in history by this radical and beneficial transformation.