What is Spiritism?

102. But spirits have done more than this. If their revelations are surrounded by certain problems and demand detailed precautions for them to be verified precisely, it is no less true that enlightened spirits — when we know how to question them and when they are permitted — can reveal unknown facts to us, provide us with explanations of incomprehensible things and place us on a more rapid path of progress. It is in this, especially, that the complete and careful study of the Spiritist science is indispensable in order not to ask of it what it cannot give; overstepping its bounds is what exposes us to being deceived.