This frequency was probably already used in ancient cultures at ceremonies to awaken the spiritual side and especially often it is claimed that it can be a key to ancient knowledge. It may be recommended to combine these frequency with others which are also associated with old structures such as the frequency 111 Hz.
When listening to frequencies, you should always drink enough water! The frequencies can be listened with speakers as well as with earphones.
Important Disclaimer: Frequencies should not replace medical treatment!
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