form, they make the psychical world, the world of sense-impressions
and mind-images. And through this totality of the phenomenal, the
soul gains experience, and is prepared for liberation. In other words,
the whole outer world exists for the purposes of the soul, and finds in
this its true reason for being.

19. The grades or layers of the Three Potencies are the defined, the
undefined, that with distinctive mark, that without distinctive mark.

Or, as we might say, there are two strata of the physical, and two
strata of the psychical realms. In each, there is the side of form, and
the side of force. The form side of the physical is here called the
defined. The force side of the physical is the undefined, that which has
no boundaries. So in the psychical; there is the form side; that with
distinctive marks, such as the characteristic features of mind-images;
and there is the force side, without distinctive marks, such as the
forces of desire or fear, which may flow now to this mind-image, now
to that.

20. The Seer is pure vision. Though pure, he looks out through the
vesture of the mind.

The Seer, as always, is the spiritual man whose deepest consciousness
is pure vision, the pure life of the eternal. But the spiritual man, as yet
unseeing in his proper person, looks out on the world through the eyes
of the psychical man, by whom he is enfolded and enmeshed. The task
is, to set this prisoner free, to clear the dust of ages from this buried
temple.

21. The very essence of things seen is, that they exist for the Seer.