All is energy. Energy cannot be created nor destroyed. It can only be transmuted from one form into another. Ultimately, energy can only do two things - expand or contract. High frequency vibrations expand energy, while low vibrational frequencies contract it. Your central nervous system; comprised of your brain, your spinal cord and your vagus nerve; along with your peripheral nervous system; which includes your physical senses (touch, hearing, smell, taste, sight); use electrical impulses to keep your body operating at peak performance for optimum health, wellbeing; ultimately keeping your physical body alive. This is basically the most sophisticated fiber-optic communication system in existence.