His evolution in the future must be by conscious participation in the great work, and this can only be effected by his own individual intelligence and effort. It is a process of intelligent growth. No one else can grow for us: we must each grow for ourselves; and this intelligent growth consists in our increasing recognition of the universal law, which has brought us as far as we have yet got, and of our own individual relation to that law, based upon the fact that we ourselves are the most advanced product of it. It is a great maxim that Nature obeys us precisely in proportion as we first obey Nature. Let the electrician try to go counter to the principle that electricity must always pass from a higher to a lower potential and he will effect nothing; but let him submit in all things to this one fundamental law, and he can make whatever particular applications of electrical power he will. These considerations show us that what differentiates the higher from the lower degree of intelligence is the recognition of its own self-hood, and the more intelligent that recognition is, the greater will be the power. The lower degree of self-recognition is that which only realizes itself as an entity separate from all other entities, as the _ego_ distinguished from the _non-ego_. But the higher degree of self-recognition is that which, realizing its own spiritual nature, sees in all other forms, not so much the _non-ego_, or that which is not itself, as the _alter-ego_, or that which is itself in a different mode of expression. Now, it is this higher degree of self-recognition that is the power by which the Mental Scientist produces his results. For this reason it is imperative that he should clearly understand the difference between Form and Being; that the one is the mode of the relative and, the mark of subjection to conditions, and that the other is the truth of the absolute and is that which controls conditions.