That the earth is a speck invisible from any one of the stars, that we are on a world which is but one among an innumerable multitude of others, ought to make us realise the utter triviality of any view of existence based upon familiarity with street and train and office, ought to give us some sense of proportion between everyday experience and ultimate reality. Even the portentous struggle in which Europe is engaged-- "What is it all but a trouble of ants in the gleam of a million million of suns?" Yet, for true interpretation, the infinite worth and vital importance of each individual human soul must be apprehended too. And that is another momentous fact, which, so far from restricting the potentialities of existence, by implication still further enlarges them. The multiplicity, the many-sidedness, the magnificence, of material existence does not dwarf the human soul; far otherwise: it illumines and expands the stage upon which the human drama is being played, and ought to make us ready to perceive how far greater still may be the possibilities--nay, the actualities--before it, in its infinite unending progress. That we know little about such possibilities as yet, proves nothing;--for mark how easy it would have been to be ignorant of the existence of all the visible worlds and myriad modes of being in space. Not until the business of the day is over, and our great star has eclipsed itself behind the earth, not until the serener period of night, does the grandeur of the material universe force itself upon our attention. And, even then, let there be but a slight permanent thickening of our atmosphere, and we should have had no revelation of any world other than our own. Under those conditions--so barely escaped from--how wretchedly meagre and limited would have been our conception of the Universe! Aye, and, unless we foolishly imagine that our circumstances are such as to have already given us a clue to every kind of possible existence, I venture to say that "wretchedly meagre and limited" must be a true description of our conception of the Universe, even now,--even of the conception of those who have permitted themselves, with least hesitation, to follow whithersoever facts lead. If there be any group of scientific or historical or literary students who advocate what they think to be a sensible, but what I regard as a purblind, view of existence, based upon already systematised knowledge and on unfounded and restricting speculation as to probable boundaries and limitations of existence,--if such students take their own horizon to be the measure of all things,--the fact is to be deplored. Such workers, however admirable their industry and detailed achievements, represent a school of thought against the fruits of which we of the Allied Nations are in arms.