Modern science is only now recognizing what the ancient mystics, alchemists and wise men have told us for thousands of years; that everything (including you) is in a constant state of vibration.
The most elemental and primal state of vibration is that of sound. Everything has an optimal range of vibration, and that range is called a resonance. When we are in resonance, we are in balance. One way to use sound resonance to heal the body, is to realize that every cell and organ in your body absorbs and emits sound, and has a particular optimal resonant sound frequency. By exposing the brain and body to certain therapeutic sound healing frequencies, they will begin to "resonate" with those healing sound freuqencies, similar to a drum that vibrates to the rhythms around it.
Emotions and psychological states also have certain vibrational frequencies; this is the secret behind the healing power of spiritual music, spoken prayers and chanted mantras. When exposed to a resonant frequency long enough, the body and brain will fall into time; if you have ever been to a large concert or been to a rave, you will understand this on a body level. If you sing with a choir, or meditate with chanted mantras, you will feel this also, because you have experienced it through practice.
Therapeutic sound and sound therapy techniques are used to realign the "out of sync frequencies" you may be experiencing within you mind or body, by exposing you to the optimum sound frequencies for the changes you wish to make within yourself.
Dr. Jane Ma’ati Smith C.Hyp. Msc.D. studied for her Bachelor of Arts degree at Arizona State University, and received a Doctorate in Metaphysical Science and Spiritual Counseling. She is a graduate of the Hypnosis Motivation Institute, and studied with Dr. John Kappas. She is also a Qualified Mental Health Practitioner, a Vibrational Reiki Master and a Sound Energy Healer. subliminalselfhypnosis.com