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,