"As the nineteenth century of the Christian era was drawing to a close, a citizen of the (then) youthful country of the United States of North America published a book which contained disclosures far in advance of his time and generation--truths, in fact, concerning life and the exercise of our faculties and functions, which, if properly understood, might have eventually led to even the solution of the very mystery of the soul. Though science at that remote period had made marvellous strides forward, its endeavors were mostly of a utilitarian character, or consisted of efforts to explain phenomena from a strictly materialistic standpoint. The author of this book, however, by dint of a combination of extraordinary circumstances, which induced him to search for causes of phenomena within, in place of outside of himself, had succeeded in breaking through the barriers which had, theretofore, separated phenomena which were called 'natural' from those which, by the majority of mankind, were still supposed to be 'supernatural,' or, at least, unexplainable, unknowable, beyond the ken of man. "He was thus enabled to penetrate more deeply than any one ever had before into the knowledge of the mysterious forces which engender and sustain organic life. Had he been properly understood, the compass of human knowledge would have been greatly enhanced, and the race itself liberated from the narrow limits to which it had been confined by the scientists almost as much as by the theologians (by the doctors of the body almost as much as by those of the soul) of his day. Some writers of that period delighted in depicting a state of affairs several centuries ahead of their time. The changes which were supposed to have taken place, however, had reference to material developments only, and did not contemplate any advancement of a purely spiritual nature. "Though the founder of the Christian religion, and other men of a high order of intellectual and moral insight, had laid down rules for 'deportment' which to a great extent still govern the world; in regard to a spiritual insight, the dearth, the waste, the discord, the distraction, the unrest, the 'Weltschmerz' (as the Germans called it), the despair of science, which knew but and dealt but with the baser part of our existence, unable to penetrate into the higher, was then at its height. The 'miracle' had ceased to exercise its influence over the intellectual classes, and knowledge had not taken its place. "This writer, however, through his discoveries, had opened up the way--made a beginning--to a penetration of science into the realms of the spirit; and a substitution of faith based on _facts_ for one based on tradition and fancy only. Religion and science, having been factors of a different, almost antagonistic, order, thus at that early period already might have become reconciled and united through _knowledge_; as to some extent, though by different means, they have become since.