You can feel the gentle power of pure quartz crystal bowls as their vibratory energy comes through this audiophile recording. Adding to the potency of the amazing tones of Crystal Tones tm Aqua 24-K Gold bowls, Egyptian blue and other unique gem-infused bowls, Halpern adds ethereal keyboards, and a toning/ invocation recorded inside the Great Pyramid. For a deeper experience, listen with headphones and your eyes closed: you can feel the sound moving inside your head! Great for meditation. Do not use while driving.