When we go still further we find that there is a being in us which we believe to be perhaps within our body or perhaps somewhere else. One cannot point it out, but it is there; and it is what we call mind. This thinking faculty has its seat in the physical body; but it is not limited by the physical body, it is independent of it. No doubt it functions in the organs of sense and in the nervous centers in order to perfect man's experience; nevertheless it is independent of the physical body, it is a faculty that can exist without the physical body, as the eyes can exist without spectacles: the spectacles only help the eyes to see more clearly.