The Sahasrara, or the Thousand-Petaled Lotus, is the final destination of the human journey. Located at the crown of the head, it is not merely a chakra but the Summit of existence. Associated with pure white light, it represents the point where the “individual” current we have been tracking through the spine finally breaks free and merges with the Infinite.
Swami Vivekananda viewed the Sahasrara as the culmination of his “Nerve Science”. He taught that all the discipline practiced at the lower gates – the conservation of energy at the Svadhisthana and the ignition of will at the Manipura – was for this single moment. When the refined energy or Ojas, finally reaches the brain, it triggers a total biological transformation. The “valves” of the mind are thrown wide open, and the person enters the state of Samadhi or super-consciousness.
At this stage, the “Witness” we developed at the Third Eye disappears. Vivekananda used the metaphor of a salt doll trying to measure the depth of the ocean; the moment it touches the water, it melts and becomes the ocean itself. This is the death of the ego and the birth of the Universal Self. You no longer possess a soul; you realize you are the Soul of the universe.
To Vivekananda, the Sahasrara was the definition of Total Freedom. A person who has touched this summit returns to the world as a Jivanmukta – one who is liberated while still in the body. They continue to work and live, but they are no longer “bound” by biology or habit. They move through life with the absolute peace of the ocean, having mastered the machine of the human nervous system and discovered the infinite light within.
Book – Raja Yoga
Vedik Mind 