Not only is man's tireless quest for assurance about God an intimation that God must be here to be sought after; but _the spiritual nature of man which insists on the quest is itself a revelation that God actually is here_. Some men say that our spiritual life is the result of evolution, and they suppose that by this magic word they have explained it. But what comes out of a process of growth was somehow latent in the Original Beginning from which the growth started. Palm-trees do not grow from acorns; only oaks evolve from acorns and for the sufficient reason that oaks are somehow _involved in acorns_ to start with. So a universe with spiritual life in it naturally presupposes an Original with spiritual life in It. Whatever evolves must first of all have been involved. The very fact that the seeker after God has a spiritual life, which is restless and unsatisfied without faith in the Eternal Spirit, is one of the clearest indications that, whatever else may be said about the source of life, it must be spiritual. The Nile for ages was a mystery; it flowed through Egypt--a blessed necessity to the land, enriching the soil, and sustaining the people--but nobody knew its source. Long before Victoria Nyanza was discovered, however, thinkers were sure that a great lake must be the explanation of the stream; and when at last they found the sources of the Nile, the lake was even greater than anyone had dreamed. So is man's spirit a revelation of a spiritual origin even before that origin is clearly known. As the Bible puts it: =Now he that wrought us for this very thing is God, who gave unto us the earnest of the Spirit.--II Cor. 5:5.= _O God! mysterious and Infinite, Thou art the first and Thou the last: as our weeks pass away and our age rises or declines, we still return to Thee who ever art the same. We seek Thee as the sole abiding light amid the shadows of perishable things. O Thou most ancient God! to whom the heavens are but of yesterday, and the life of worlds but as the shooting star, there is no number of Thy days and mercies; and what can we do, O Lord, but throw ourselves on Thee who failest not, and from whom our pathway is not hid? With solemn and open heart we would meet Thee here. Cover not Thyself with a cloud, most High, but may our prayer pass through._