" Whatever you think or do imprints in ether
  and all he had done, was to play back. This
  can be done by any one who has developed
  a pure soul.
  The soul can easily be developed by chanting
   mantra and listening to their vibrations
   attentively."
                  -  Sri Krishana Gopal ji Vyas Maharaj
              ( in reply to a question put by a disciple )