Swami Vivekananda,
The Complete Works of Swami Vivekananda…
“ Suppose, for instance, a man understood the Prana perfectly, and could control it, what power on earth would not be his? He would be able to move the sun and stars out of their places, to control everything in the universe, from the atoms to the biggest suns, because he would control the Prana. This is the end and aim of Pranayama. When the Yogi becomes perfect, there will be nothing in nature not under his control. If he orders the gods or the souls of the departed to come, they will come at his bidding. All the forces of nature will obey him as slaves. ”
