Enough has been said to indicate a few of the difficulties which stand in the way, when we approach the consideration of man's spiritual nature. A study of the various religions and spiritualistic beliefs which are current in the world to-day would be a tedious task for the average mind and would probably be of little practical use or help to any one. The same may be said about the scientific theory of evolution. That is essentially an effort of the intellect, focusing the attention on details, processes and stages of development in living things and arriving no nearer to a solution of the unexplainable than we were in the beginning. Suppose I happen to be impressed by the beauty and wonder of an orange tree, with its golden, luscious fruit, its delicately tinted and deliciously scented blossoms, its graceful leaves and branches, its symmetrical trunk so firmly rooted in the ground? Merely as a piece of machinery, as a little factory, designed to manufacture a certain kind of edible product, it is far more ingenious, economical and generally marvellous than anything the combined brains of mankind have been able to design throughout the centuries. It is automatic, self-lubricating, self-repairing and goes on, year after year, in fair weather or foul, turning out its brand of juicy pulp, done up charmingly in little yellow packages. How does it operate? How does it always manage to get the necessary raw materials from the earth and the air? How do the roots and the leaves and the sap ever contrive to convert these into perfume and blossoms and pulp and pigment? Now suppose a scientific intellect comes along and, after investigating, dissecting, analyzing, eventually holds out before my eyes a tiny white seed which it has located in the centre of the yellow package--and says: "This is the explanation of the whole thing. That orange tree is merely the result, by a process of natural development and evolution, of this seed. We have studied it all out, step by step. If you will give us one of these seeds to start with and some ground to put it in, there is no mystery about it at all. We can show you how the whole thing happens. Of course, it takes considerable time--but time is nothing to Nature. In this case, only four or five years are required for the seed to become transformed into a fruit-bearing orange tree."