It is the same with the garb that the soul has adopted from the angelic plane: it is not necessarily so small as to be covered by the two garbs just described, but it is even larger and finer. Only, the eyes of this plane cannot see it; its rate of vibration is greater. We see things because of their vibratory rate; if they are invisible it is not because they are invisible by nature, but because they are invisible to our sight. Since we are dependent upon our physical eyes in order to see, that which the physical eyes cannot see we naturally say is unseen. It is only unseen because we cannot see it as a form.