http://www.BrainwaveFrequencies.com/UsesOfCrystals.html Uses of crystals through crystal activation were long known to the mankind. It's only the isochronic tones that made a new entry into the scene.
Uses of crystals as healing crystals through crystal activation were long known. Isochronic tones have made a new entry into the scene revolutionizing the entire scenario that these stones have kept being used for since thousands of years ago.
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