And what is that? Now, avināśi tu tad viddhi yena sarvam idaṁ tatam: "You just try to understand. In your body there is some thing which is spread all over body, all over your body. And that is eternal. And what is that thing which is spread all over your body? That is your consciousness. Your consciousness."
Just like this electric bulb is here, and the light of the electric bulb is diffused all over the, I mean to say, room. We can see. Similarly, the spirit soul is within your heart. It is situated there. But it is so powerful that its light is spread all over this body so that wherever you pinch, you feel, by consciousness, "Oh, I am feeling some pain." That consciousness. And as soon as that consciousness is gone from this body, if your head is cut off, or your leg is cut off, by chopped off, you don't feel anything.