This universal Voice has ever sounded, and it has often troubled men even when they did not understand the source of their fears. Could it be that this Voice distilling like a living mist upon the hearts of men has been the undiscovered cause of the troubled conscience and the longing for immortality confessed by millions since the dawn of recorded history? We need not fear to face up to this. The speaking Voice is a fact. How men have reacted to it is for any observer to note. When God spoke out of heaven to our Lord, self-centered men who heard it explained it by natural causes: they said, "It thundered." This habit of explaining the Voice by appeals to natural law is at the very root of modern science. In the living breathing cosmos there is a mysterious Something, too wonderful, too awful for any mind to understand. The believing man does not claim to understand. He falls to his knees and whispers, "God." The man of earth kneels also, but not to worship. He kneels to examine, to search, to find the cause and the how of things. Just now we happen to be living in a secular age. Our thought habits are those of the scientist, not those of the worshipper. We are more likely to explain than to adore. "It thundered," we exclaim, and go our earthly way. But still the Voice sounds and searches. The order and life of the world depend upon that Voice, but men are mostly too busy or too stubborn to give attention. Everyone of us has had experiences which we have not been able to explain: a sudden sense of loneliness, or a feeling of wonder or awe in the face of the universal vastness. Or we have had a fleeting visitation of light like an illumination from some other sun, giving us in a quick flash an assurance that we are from another world, that our origins are divine. What we saw there, or felt, or heard, may have been contrary to all that we had been taught in the schools and at wide variance with all our former beliefs and opinions. We were forced to suspend our acquired doubts while, for a moment, the clouds were rolled back and we saw and heard for ourselves. Explain such things as we will, I think we have not been fair to the facts until we allow at least the possibility that such experiences may arise from the Presence of God in the world and His persistent effort to communicate with mankind. Let us not dismiss such an hypothesis too flippantly.