But, fortunately, we are spared all discussion on this worn subject, for two cogent reasons. For one thing, we do not demand of Nature directly to prove Religion. That was never its function. Its function is to interpret. And this, after all, is possibly the most fruitful proof. The best proof of a thing is that we _see_ it; if we do not see it, perhaps proof will not convince us of it. It is the want of the discerning faculty, the clairvoyant power of seeing the eternal in the temporal, rather than the failure of the reason, that begets the sceptic. But secondly, and more particularly, a significant circumstance has to be taken into account, which, though it will appear more clearly afterward, may be stated here at once. The position we have been led to take up is not that the Spiritual Laws are analogous to the Natural Laws, but that _they are the same Laws_. It is not a question of analogy but of _Identity_. The Natural Laws are not the shadows or images of the Spiritual in the same sense as autumn is emblematical of Decay, or the falling leaf of Death. The Natural Laws, as the Law of Continuity might well warn us, do not stop with the visible and then give place to a new set of Laws bearing a strong similitude to them. The Laws of the invisible are the same Laws, projections of the natural not supernatural. Analogous Phenomena are not the fruit of parallel Laws, but of the same Laws--Laws which at one end, as it were, may be dealing with Matter, at the other end with Spirit. As there will be some inconvenience, however, in dispensing with the word analogy, we shall continue occasionally to employ it. Those who apprehend the real relation will mentally substitute the larger term.
Let us now look for a moment at the present state of the question. Can it be said that the Laws of the Spiritual World are in any sense considered even to have analogies with the Natural World? Here and there certainly one finds an attempt, and a successful attempt, to exhibit on a rational basis one or two of the great Moral Principles of the Spiritual World. But the Physical World has not been appealed to. Its magnificent system of Laws remains outside, and its contribution meanwhile is either silently ignored or purposely set aside. The Physical, it is said, is too remote from the Spiritual. The Moral World may afford a basis for religious truth, but even this is often the baldest concession; while the appeal to the Physical universe is everywhere dismissed as, on the face of it, irrelevant and unfruitful. From the scientific side, again, nothing has been done to court a closer fellowship. Science has taken theology at its own estimate. It is a thing apart. The Spiritual World is not only a different world, but a different kind of world, a world arranged on a totally different principle, under a different governmental scheme.
The Reign of Law has gradually crept into every department of Nature, transforming knowledge everywhere into Science. The process goes on, and Nature slowly appears to us as one great unity, until the borders of the Spiritual World are reached. There the Law of Continuity ceases, and the harmony breaks down. And men who have learned their elementary lessons truly from the alphabet of the lower Laws, going on to seek a higher knowledge, are suddenly confronted with the Great Exception.
Even those who have examined most carefully the relations of the Natural and the Spiritual, seem to have committed themselves deliberately to a final separation in matters of Law. It is a surprise to find such a writer as Horace Bushnell, for instance, describing the Spiritual World as "another system of nature incommunicably separate from ours," and further defining it thus: "God has, in fact, erected another and higher system, that of spiritual being and government for which nature exists; a system not under the law of cause and effect, but ruled and marshaled under other kinds of laws."[9] Few men have shown more insight than Bushnell in illustrating Spiritual truth from the Natural World; but he has not only failed to perceive the analogy with regard to Law, but emphatically denies it.
In the recent literature of this whole region there nowhere seems any advance upon the position of "Nature and the Supernatural." All are agreed in speaking of Nature _and_ the Supernatural. Nature _in_ the Supernatural, so far as Laws are concerned, is still an unknown truth.