creeps in. There is but one possible explanation of such a fact: namely, that it is one of those primary constituents of our nature which are incapable of proof because they are themselves the foundations on which proof must be erected. We cannot demonstrate a single law of nature without supposing a world external to ourselves. And we cannot suppose a world external to ourselves without referring explicitly or implicitly to an unknown entity manifested in that world. The faculty by which this truth is known must be considered as a kind of internal sense. It is a direct perception. And precisely as objects of direct perception by the senses appear widely dissimilar at different distances, to different men, and to the same man at different times, so the object of the religious emotion is variously conceived in different places and ages, by different men, and by the same man at different times. Moreover, as the religious sentiment in the mind of man perceives its object, the Ultimate Being, so that Being is conceived as making itself known to the mind of man through the religious sentiment. A reciprocal relation is thus established; the Unknowable causing a peculiar intuition, the mind of man receiving it. And this is the grain of fact at the foundation of the numerous statements of religious men, that they have felt themselves inspired by God, that he speaks to them and speaks through them, that they enter into communion with him in prayer, and obey his influence during their lives. We need not discard such feelings as idle delusions. In form they are fanciful and erroneous; in substance they are genuine and true. And in a higher sense the adherent of the universal religion may himself admit their title to a place in his nature. To use the words of a great philosopher, "he, like every other man, may consider himself as one of the myriad agencies through whom works the Unknown Cause;" "he too may feel that when the Unknown Cause produces in him a certain belief, he is thereby authorized to profess and act out that belief" (Spencer's "First Principles," 2d ed., § 34, p. 123).
But we may go still deeper in our examination of the nature of the relation between the Ultimate Being and the mind of man. To do so we must briefly recur to the philosophical questions touched upon in the eighth chapter of this Book. We
