This is a brainwave entrainment track for meditation, containing a combination of isochronic tones and whale sounds.The isochronic tones are the repetitive beats you hear in the background, behind the whale sounds. They gradually reduce in speed, to help lower your dominant brainwave frequency to a more relaxed mental state. At the lowest point they reach 7.83Hz, beating at 7.83 times per second. 7.83Hz is right on the border between the Alpha and Theta frequency range. Interesting facts about Schumann Resonance 7.83Hz - Schumann Resonance occurs at 7.83hz and is often referred to as the Earth’s Pulse. - Observations of Schumann Resonances have been used to track global lightning activity. - It is believed the frequency of 7.83hz can be used to explore the lower ionosphere on celestial bodies. - It’s linked to transient luminous events like sprites, elves and jets.