Kundalini

'Kundalini represents the cosmic vital energy lying dormant in the human body, coiled around the base of the spine, like a serpent, asleep... When roused, Kundalini rises through the sushumna, the hairline duct rising through the spinal cord, like a streak of lightning carrying with her the vital energy of the body, to join her divine spouse Shiva in the last or seventh center in the brain'.