Sound has been utilised in various cultures for thousands of years as a tool for healing. Whether through the use of mantras as with the Hindis, the Icaros (medicine melodies) of various Indigenous peoples from Central and South America, or Pythagoras' use of interval and frequency, these various techniques all have the same intention: to move us from a place of imbalance to a place of balance.
How does it work?
Sound helps to facilitate shifts in our brainwave state by using entrainment. Entrainment synchronises our fluctuating brainwaves by providing a stable frequency which the brainwave can attune to. By using rhythm and frequency, we can entrain our brainwaves and it then becomes possible to down-shift our normal beta state (normal waking consciousness) to alpha (relaxed consciousness), and even reach theta (meditative state) and delta (sleep; where internal healing can occur).