This is the natural history of much atheism, not only an atheism of atheists, but a more terrible atheism of Christians, an unconscious atheism, whose roots have struck far into many souls whose last breath would be spent in denying it. So, I repeat, it is a mistaken Christianity which allow men to cherish a blind belief in the omnipotence of prayer. Prayer, certainly, when the appropriate conditions are fulfilled, is omnipotent, but not blind prayer. Blind prayer is a superstition. Prayer, in its true sense, contains the sane recognition that while man prays in faith, _God acts by law_. What that means in the immediate connection we shall see presently. What, then, is the remedy? It is impossible to doubt that there is a remedy, and it is equally impossible to believe that it is a secret. The idea that some few men, by happy chance or happier temperament, have been given the secret--as if there were some sort of knack or trick of it--is wholly incredible and wrong. Religion must be for all, and the way into its loftiest heights must be by a gateway through which the peoples of the world may pass. I shall have to lead up to this gateway by a very familiar path. But as this path is strangely unfrequented where it passes into the religious sphere, I must ask your forbearance for dwelling for a moment upon the commonest of commonplaces. I. EFFECTS REQUIRE CAUSES. Nothing that happens in the world happens by chance. God is a God of order. Everything is arranged upon definite principles, and never at random. The world, even the religious world, is governed by law. Character is governed by law. Happiness is governed by law. The Christian experiences are governed by law. Men, forgetting this, expect Rest, Joy, Peace, Faith to drop into their souls from the air like snow or rain. But in point of fact they do not do so; and if they did, they would no less have their origin in previous activities and be controlled by natural laws. Rain and snow do drop from the air, but not without a long previous history. They are the mature effects of former causes. Equally so are Rest and Peace and Joy. They, too, have each a previous history. Storms and winds and calms are not accidents, but brought about by antecedent circumstances. Rest and Peace are but calms in man's inward nature, and arise through causes as definite and as inevitable.