Let us now ask: “Can a human body have pain?” One is inclined to say: “How can the body have pain? The body in itself is something dead; a body isn't conscious!” And here again it is as though we looked into the nature of pain and saw that it lies in its nature that a material object can't have it. And it is as though we saw that what has pain must be an entity of a different nature from that of a material object; that, in fact, it must be of a mental nature. But to say that the ego is mental is like saying that the number 3 is of a mental or an immaterial nature, when we recognize that the numeral “3” isn't used as a sign for a physical object.