The Schumann Resonance is earth's natural electromagnetic heartbeat, created by lightning in the space between the surface and the ionosphere. Its main frequency, the 1st order, is 7.83 Hz, followed by the Amazon.com: 93.96Hz Schumann Weighted Tuning Fork with Earth Star Engram Carry Bag and Striker Sound Healing Instruments and Biofield Harmonization Chakra Alignment Vibration Therapy Tools Pink : Musical Instruments Amazon.com: 93.96Hz Schumann Weighted Tuning Fork with Earth Star Engram Carry Bag and Striker Sound Healing Instruments and Biofield Harmonization Chakra Alignment Vibration Therapy Tools Silver : Musical Instruments Ancient_Knowledge If you take the Schumann Resonance (the Earth's fundamental frequency of 7.83Hz) and run it through a cymatic plate, the vibration creates Instagram Amazon.com: 93.96Hz Schumann Weighted Tuning Fork Carry Bag and Striker Sound Healing Instruments and Biofield Harmonization Chakra Alignment Vibration Therapy Tools World Grid Earthy Gray : Musical Instruments