Recommended research:
Quantum physics teaches us by our very observation we collapse the field all around us. Thoughts literally become matter.
Tesla had an "earthquake" device. By its design it capture the frequency of an object. take for example a wine glass. When you place your finger around the rim to create that "noise frequency" that is its very own frequency. If I were to record said frequency, its vibration and amplify that frequency with a speaker next to the wine glass you would start to seen the wine glass shake and create a wave that changes its form. As you continue to turn up the volume it would eventually shatter. Same physics apply to metal and other objects.
We are made of mostly water. Or brains our thougts create frequency. Check out technology of Cymatics and you will see the patterns of frequency as it changes.
This is all documented in Teslas work….should I continue? Check the video it may start to sink in of the potential of this tech and how it impacts humans every day. Think 5G. Frequencies can be positive and very negative. Just like anything else.