7. The elements of sound intellection are: direct observation, inductive reason, and trustworthy testimony.
Each of these is a spiritual power, thinly veiled. Direct observation is the outermost form of the Soul’s pure vision. Inductive reason rests on the great principles of continuity and correspondence; and these, on the supreme truth that all life is of the One. Trustworthy testimony, the sharing of one soul in the wisdom of another, rests on the ultimate oneness of all souls.
8. Unsound intellection is false understanding, not resting on a perception of the true nature of things.
When the object is not truly perceived, when the observation is inaccurate and faulty, thought or reasoning based on that mistaken perception is of necessity false and unsound.
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.