9. Predication is carried on through words or thoughts not resting on an object perceived. The purpose of this Sutra is, to distinguish between the mental process of predication, and observation, induction or testimony. Predication is the attribution of a quality or action to a subject, by adding to it a predicate. In the sentence, “the man is wise,” “the man” is the subject; “is wise” is the predicate. This may be simply an interplay of thoughts, without the presence of the object thought of; or the things thought of may be imaginary or unreal; while observation, induction and testimony always go back to an object. 10. Sleep is the psychic condition which rests on mind states, all material things being absent. In waking life, we have two currents of perception; an outer current of physical things seen and heard and perceived; an inner current of mind-images and thoughts. The outer current ceases in sleep; the inner current continues, and watching the mind-images float before the field of consciousness, we “dream.” Even when there are no dreams, there is still a certain consciousness in sleep, so that, on waking, one says, “I have slept well,” or “I have slept badly.” 11. Memory is holding to mind-images of things perceived, without modifying them. Here, as before, the mental power is explained in terms of mind-images, which are the material of which the psychic world is built, Therefore the sages teach that the world of our perception, which is indeed a world of mind-images, is but the wraith or shadow of the real and everlasting world. In this sense, memory is but the psychical inversion of the spiritual, ever-present vision. That which is ever before the spiritual eye of the Seer needs not to be remembered. 12. The control of these psychic activities comes through the right use of the will, and through ceasing from self-indulgence. If these psychical powers and energies, even such evil things as passion and hate and fear, are but spiritual powers fallen and perverted, how are we to bring about their release and restoration? Two means are presented to us: the awakening of the spiritual will, and the purification of mind and thought. 13. The right use of the will is the steady, effort to stand in spiritual being. We have thought of ourselves, perhaps, as creatures moving upon this earth, rather helpless, at the mercy of storm and hunger and our enemies. We are to think of ourselves as immortals, dwelling in the Light, encompassed and sustained by spiritual powers. The steady effort to hold this thought will awaken dormant and unrealized powers, which will unveil to us the nearness of the Eternal. 14. This becomes a firm resting-place, when followed long, persistently, with earnestness.