These CDs incorporate original Healing Music & Sounds from Nature, they contain Linguistic Specific Content and they utilize Binaural Audio to entrain Alpha Brain Waves. The Binaural Audio works as follows: your brain learns best when you are relaxed and alert and in what scientists call an "Alpha State." It is often called the "super learning" state. When tones at slightly different frequencies are played separately, one into each ear, the difference is perceived as low frequency pulses or "beats." When the beat frequency corresponds to the "Alpha" range, the brain resonates to it; the brainwaves follow toward that "Alpha" frequency and the brain naturally relaxes into an "Alpha" state, creating a mind-body sense of relaxation and peace.