1. How is it possible to obtain a knowledge of the future? One comprehends how to predict events which are a consequence of the present state of things, but not of those which have no connection with this, and still less of which are attributed to chance. Future things, they say, do not exist. They are still in nothingness. How then can one know that they will come? The examples of verified predictions are, however, numerous enough, from whence it is necessary to conclude it is a phenomenon of which we have not the key; for there is no effect without a cause. It is this cause we are seeking; and it is Spiritism, the key to so many mysteries, which will furnish it to us. Moreover, we will show that the fact of the predictions themselves is not obtained by a departure from the natural laws.
Let us take, as a comparison, an example in common things, which will aid us to make the principle which we have to develop better understood.