Yes, you have what's called a spinal cord. It stems from your brain and goes out a hole in the bottum of your skull. From there it travels down the middle of your spine all the way to your tail bone. Our spines are actually hollow with a brain cord down the middle of it. Then little ventricles shoot out from the spinal cord through slots in the spinal column and connect to your muscles. This is how your brain tells your body to move.
Your brain creates the thought to move. This thought travels from the brain, down the spinal cord, essentially down your spine and directly into your muscle. Your muscles contracts giving you the ability to move. So, expect to feel a lot of sensations on your spine. Know that your spine is not just a bone, it has a brain cord in it. While there Is a spiritual side to what we do, there is also a physical side.
We are actually stimulating and repairing this spinal cord. The chakras stimulate the dormant brain mater, thus activating it, this is why you get high. Certain chemicals being released and what not. The spinal cord goes right into the brain and the cerebellum is connected to it. Thus the serpent biting into the cerebellum, is actually the activation of the cerebellum. This act stimulates the whole brain. Thus activating the entire Brain.
Becoming Risen is not about seeing light snakes and chakras and that's is. Your are literally repairing your physical Brain and Spinal Cord. Obviously such an endeavor is not to be rushed. So, relax and take your time, as you can damage yourself if your not careful.