Grounding or Clearing yourself before performing Healing and Meditation removes negative energy and thoughts. If you do not have your own method for Grounding or Clearing, there is one included on the CD insert. There are four calming 15 minute music tracks that include the Contemporary Technology of Brain Wave Entrainment (BWE) in the form of Isochronic Tones. Play the special music during Grounding or Clearing, and it will make both processes more powerful and effective. Volume 2 has four new 15 minute music tracks that include Alpha and Isochronic Tones. Music Tracks: Alpha Healing (15:00); Theta Calm (15:00); Alpha Serenity (15:00); Theta Dreaming (15:00).