As far back as we know, the Earth’s electromagnetic field has been protecting and supporting all living things with this natural frequency pulsation of 7.83 Hz. You can think of the Schumann resonance as the Earth’s heartbeat. The ancient Indian rishis referred to this as OM, or the incarnation of pure sound. Whether by coincidence or not, 7.83 Hz also happens to be a very powerful frequency used with brain-wave entrainment, as it is associated with low levels of alpha and the upper range of theta brain-wave states.
