We have long known that everything vibrates. A healthy and fulfilling life depends on how well we can "resonate" with these vibrations. We can improve and harmonize our inner "resonance" with the healing vibrations of the external world, the universe, through phonophoresis: tuning fork therapy combines ancient knowledge into a simple remedy that can resolve corresponding dissonances and blockages in people using tuning forks tuned to planetary frequencies. To establish a foundation for the phenomenon of "phonophoresis," the first part of this guide offers a wide range of background knowledge, particularly about the fundamental principles, which help us better understand our lives and those of others, as well as to draw new vitality. The second part provides numerous practical and illustrative examples of how phonophoresis works.