The degree to which mind can control circumstances and dominate matter is far greater than is generally believed. Our impressions about matter are very illusory. No form of matter is permanent. Change goes on everywhere at every instant, by physical laws in the physical body and by astral and mental laws in our invisible bodies. We are not the same being, physically, mentally or spiritually, any two days in succession. The very soul itself is subject to this law of change. It may expand and shine out through the physical organism resplendent, or it may only faintly glimmer through a constantly coarsening body.

What is the law of soul growth? Through adherence to what principle may we reach spiritual illumination? There are certain well established facts about the laws of growth that we should not overlook when seeking the way forward. Nothing whatever can grow without use, without activity. Inaction causes atrophy. Physiologists tell us that if the arm be tied to the body so that it cannot be used it will in time become so enfeebled, that it is of no further service. It will wither away. That is nature's law of economy. She never gives life where it is useless, where it can not, or will not, be utilized. On the other hand, exercise increases power. To increase the size and strength of muscles we must use them. This is just as true of mental and moral faculties as it is of the physical body. The only way to make the brain keen and powerful is to exercise it by original thinking. One way to gain soul powers is to give free play to the loftiest aspirations of which we are capable, and to do it systematically instead of at random. We grow to be like the things we think about. Now, the reverse of all this must be equally true. To give no thought to higher things, to become completely absorbed in material affairs, is to stifle the soul, to invite spiritual atrophy.

Turning our attention to nature we shall find in the parasite convincing proof of all this. The parasite, whether plant or animal, is living evidence that to refuse or neglect to use an organ or faculty results in being deprived of it. The dodder, says Drummond, has roots like other plants, but when it fixes sucker discs on the branches of neighboring plants and begins to get its food through them, its roots perish. When it fails to use them it loses them. He also points to the hermit-crab as an illustration of this great fact in nature, that disuse means loss, and that to shirk responsibility is the road to degeneration. The hermit-crab was once equipped with a hard shell and with as good means of locomotion as other crabs. But instead of courageously following the hardy life of other crustaceans it formed the bad habit of taking up its residence in the cast-off shells of mollusks. This made life easy and indolent. But it paid the price of all shirking. In time it lost four legs, while the shell over the vital portion of its body degenerated to a thin membrane which leaves it practically helpless when it is out of its captured home. And this is the certain result of all shirking of responsibility. There may be an apparent temporary gain, but it always means greater loss, either immediate or remote. So nature punishes inaction with atrophy. Whatever is not used finally ceases to be. In plain language, apathy, inaction, idleness, uselessness, is the road to degeneration. On the other hand, aspiration and activity mean growth, development, power.

So we grow, physically, mentally and morally, by activity, by exercise of the organs or the faculties we desire to possess. It is only by the constant exercise of these things that we can grow at all. When this great law of nature is understood we see at once how it is that life is full of trouble; why it is that the whole visible world seems to be designed to keep us constantly at work physically and mentally, to challenge our resourcefulness in improving our physical, social and political conditions, to continually try our patience and to forever test our courage. It is the way of development. It is the price of progress.

The universe is a training school for evolving intelligence—a vast gymnasium for the development of moral fibre. We become mentally clever by playing at the game of life. We match our courage against its adversities and acquire fearlessness. We try our optimism against its disappointments and learn cheerfulness. We pit our patience against its failures and gain persistence. We are torn from the pinnacle of ambition by opponents and learn toleration of others. We fall from the heights of vanity and pride, and learn to be modest and humble. We encounter pain and sorrow and learn sympathy with suffering. It is only by such experiences that we can grow to rounded measure. It is only in an environment thus adapted to our spiritual development that we can evolve the latent powers within us.

Such is the universe in which we find ourselves and from it there is no escape. No man can avoid life—not even the foolish one who, when the difficulties before him appear for the moment overwhelming, tries to escape them by suicide. A man cannot die. He can only choose how he will live. He may either helplessly drift through the world suffering from all the ills and evils that make so many unhappy or he may choose the method of conscious evolution that alone makes life truly successful. We may be either the suffering slaves of nature or the happy masters of her laws.

Now, all powers possessed by any human being, no matter how exalted his position in evolution, or how sublime his spiritual power, are latent in all human beings and can, in time, be developed and brought into action. Of course there is no magic rule by which the ignoramus can instantly become wise or by which a brutal man can be at once transformed into a saint. It may require scores of incarnations to accomplish a work so great, but when a man reaches the point in his evolution where he begins to comprehend the purpose of life, and to evolve the will to put forth his energies in co-operation with nature, his rise to wisdom and power may be swift indeed. But this transformation from the darkness of ignorance to spiritual illumination, from helplessness "in the fell clutch of circumstance" to power over nature, must be brought about by his own efforts, for it is a process of evolution—of forcing the latent to become the active. Therefore one must resolve to take oneself in hand for definite and systematic self-development. Nobody else can do the work for us. Certain moral qualities must be gained before there can be spiritual illumination and genuine wisdom and such qualities, or virtues, have to be evolved by the laws under which all growth occurs. It is just as impossible to acquire a moral quality by reading about its desirability as to evolve muscular strength by watching the performance of a group of athletes. To gain muscular strength one must take part in the physical activities that produce it. He must live the athletic life. To win spiritual strength and supremacy he must live the spiritual life. There is no other way. He must first learn what mental and moral qualities are essential, and how to gain them, and then set earnestly about the work of acquiring them.

The first thing necessary is to get a clear understanding of the fact that the physical body is not the self but only a vehicle or instrument through which the self is being manifested in the visible world. The body is as much your instrument as the hand is, or as your pen is. It is a thing which you, the self, use and a clear conception of this fact—a feeling that this is the fact—is the first step toward that absolute control of the physical body that lays the foundation for success in conscious evolution. When we feel that in managing the physical body we are controlling something that is not ourself we are fairly started on the right road.

Now, there are three things that a person must possess to be successful in self-development. If he has not these three qualifications he will make but little progress; but, fortunately, any lacking quality can be evolved and if one does not possess these three necessities his first work is to create them. These three things are an ardent desire, an iron will and an alert intelligence. Why are these three qualifications essential to success and what purpose do they serve?

Desire is nature's motor power—the propulsive force that pushes everything forward in its evolution. It is desire that stimulates to action. Desire drives the animal into the activities that evolve its physical body and sharpen its intelligence. If it had no desire it would lie inert and perish. But the desire for food, for drink, for association with its kind, impel it to action, and the result is the evolution of strength, skill and intelligence in proportion to the intensity of its desires. To gratify these desires it will accept battle no matter how great may be the odds against it and will unhesitatingly risk life itself in the combat. Desire not only induces the activity that develops physical strength and beauty, but also has its finer effects. Hunger compels the animal not only to seek food, but to pit its cunning against that of its prey. Driven forward by desire it develops, among other qualities, strength, courage, patience, endurance, intelligence.