It is the faculty of the soul to see, and the eyes are its instruments. It is not the instrument that sees, but it is the soul that uses the instrument to see. The eyes I have given as an example, but really the whole body is the instrument of the soul, to get the experience of life. The seeing of the soul through the ears is called hearing, through the tongue, tasting. It is the knowing by the soul of the external life -- the soul uses different instruments to obtain different experiences. Between the body and the soul there is another instrument which is recognized by scientists and mystics as inexplicable. That is the mind. The scientists call it the brain, but the brain is but the instrument of the mind, and the mind goes beyond it. Plainly speaking, it may be said that the mind is the instrument of the soul and the body is the instrument of the mind, but both mind and body are the instruments of the soul. Although these instruments give the soul knowledge of things clearly, these instruments at the same time limit the power of the soul.