The words of the Wrestler at the brook Jabbok, "Let me go, for the day breaketh," express the truth that spiritual things will not submit themselves to sensible tests. When we seek to let the full daylight, by which we discern other objects, stream upon them, they elude our grasp. When we fancy we are on the verge of having our doubts for ever scattered, and our suppositions changed into certainties, the very approach of clear knowledge and demonstration seems to drive those sensitive spiritual presences into darkness. As Pascal remarked, and remarked as the mouth-piece of all souls that have earnestly sought for God, the world only gives us indications of the presence of a God Who conceals Himself. It is, indeed, one of the most mysterious characteristics of our life in this world, that the great Existence which originates and embraces all other Beings, should Himself be so silent and concealed: that there should be need of subtle arguments to prove His existence, and that no argument ever conceived has been found sufficiently cogent to convince all men. One is always tempted to say, how easy to end all doubt, how easy for God so to reveal Himself as to make unbelief impossible, and give to all men the glad consciousness that they have a God. The reason of this "reserve" of God must lie in the nature of things. The greatest forces in nature are silent and unobtrusive and incomprehensible. Without the law of gravitation the universe would rush into ruin, but who has ever seen this force? Its effects are everywhere visible, but itself is shrouded in darkness and cannot be comprehended. So much more must the Infinite Spirit remain unseen and baffling all comprehension. "No man hath seen God at any time" must ever remain true. To ask for God's name, therefore, as Jacob did, is a mistake. For almost every one supposes that when he knows the name of a thing, he knows also its nature. The giving of a name, therefore, tends to discourage enquiry, and to beget an unfounded satisfaction as if, when we know what a thing is called, we know what it is. The craving, therefore, which we all feel in common with Jacob--to have all mystery swept from between us and God, and to see Him face to face, so that we may know Him as we know our friends--is a craving which cannot be satisfied. You cannot ever know God as He is. Your mind cannot comprehend a Being who is pure Spirit, inhabiting no body, present with you here but present also hundreds of millions of miles away, related to time and to space and to matter in ways utterly impossible for you to comprehend.