Close your eyes and visualize your backbone. Let the backbone be straight, erect. Visualize it, see it, and just in the middle of it visualize a nerve, delicate as the lotus thread, running in the center of your spinal column.
In the spine, just in the center, there is a silver cord – a very delicate nerve. It is not really a nerve in the physiological sense. If you operate to find it; it will not be there. But in deep meditation it is seen. Through that thread you are related to the body, and through that thread also you are related to your soul.
First, visualize the spine. At first you will feel very strange, you will be able to visualize it, but as an imagination. And if you go on endeavoring, then it will not be just your imagination. You will become capable of seeing your spinal column.
Man can see his own body structure from within. We have not tried it because it is very, very fearful, loathsome: because when you see your bones, blood, veins, you become afraid. So really, we have completely blocked our minds from seeing within. We see the body from without, as if someone else is looking at the body. It is just as if you go outside this room and look at it – then you know the outer walls. Come in and look at the house – then you can look at the inner walls. You see your body from outside as if you are somebody else seeing your body. You have not seen your body from inside. We are capable of it, but because of this fear it has become a strange thing.
Indian yoga books say many things about the body, which have been found to be exactly right by new scientific research, and science is unable to explain this. How could they know? Surgery and knowledge of the inside of the human body are very recent developments. How could they know of all the nerves, of all the centers, of all the inner structures? They knew even about the latest findings; they have talked about them, they have worked upon them. Yoga has always been aware about all the basic, significant things in the body. But they were not dissecting bodies, so how could they know? Really, there is another way of looking at your own body – from within. If you can concentrate within, suddenly you begin to see your body – the inner lining of the body.
Close your eyes and feel your body. Relax. Concentrate on the spinal column. And this sutra says very simply, in such be transformed. And you will be transformed through it.