When the sleeping energy – the great Kundalini is awakened by resorting to proper means, guided by a proper teacher, it awakens and begins to move up the Sushumna channel, touching six centers as it ascends. It reaches the topmost center, known as the thousand petalled lotus – the Sahasraara Chakra which is actually located at the crown of the head and when the energy reaches there, it merges with the supreme reality called – Shivam. When both merge, the Yogi enters Samadhi or a high super conscious state where he realizes his own identity merges with that divine, all pervading supremely blissful being.