The Spiritist Movement is the cluster of activities whose objective is the study, dissemination, and practice of the Spiritist Doctrine, as contained in the basic works of Allan Kardec, placing it within the reach and at the service of all Humanity.

The activities which compose the Spiritist Movement are carried out by individuals, jointly or on their own, and by Spiritist Institutions.

The Spiritist Institutions consist of:

Spiritist Groups, Centers, or Societies, which develop general activities related to the study, dissemination, and practice of the Spiritist. They may be small, medium, or large in size;
Federations, which develop activities aimed at the union of the Spiritist Institutions and the unification of the Spiritist Movement;
Specialized Organizations, which develop specific Spiritist activities, such as those devoted to social assistance and teachings dissemination; and
Study Groups of Spiritism, basically concentrating on the initial study of the Spiritism Teachings.

798. Will Spiritism become the general belief, or will its acceptance remain confined to the few?

“It will certainly become the general belief, and will mark a new era in the history of the human race, because it belongs to the natural order of things, and because the time has come for it to be ranked among the branches of human knowledge. It will nevertheless have to withstand a good many violent attacks – attacks that will be prompted rather by interest than by conviction, for you must not lose sight of the fact that there are persons whose interest is to combat this belief, some from self-conceit, others from worldly considerations; but its opponents, finding themselves in a decreasing minority, will at length be obliged to rally to the general opinion, on pain of rendering themselves ridiculous.”
The Spirits’ Book – Chapt. VIII – Part Three