These are very special CDs- they can aid you in your recovery from depression naturally, using sound to help rebalance your body, mind and spirit! CD #1 uses ambient sound waves and pulses on this CD use proven sound therapy techniques to fill your environment with mood lifting tones, set at the Balance Frequency of 360 Hz... this frequency is derived from the Golden Ratio and is said to bring balance and health into your life. CD #2 uses the advanced sound therapy technique of Binaural Beats, to help directly correct the imbalances in your brain which contribute to a state of depression. #1730601