Quartz crystal singing bowls are one of the most powerful methods for healing on spiritual, emotional, and physical levels. The use of crystal bowls take the principle of vibrational healing through sound to a new level. Quartz is composed of silicon dioxide, a compound that is also strongly present in human chemical structure. Thus, the vibrations of crystal bowls help to "re-tune" us to our own natural and healing vibrations. Like other forms of vibrational healing, such as crystals, flower essences, and Reiki, the tones of these bowls help to dissolve energetic blockages, allowing us to return to balance. The initial effect of playing crystal bowls is to relax the body and mind. Once calmness is restored, the sound frequencies stimulate the chakras, brain, endocrine glands, and nervous sysytem. When we combine the playing of the bowls with focused, positive thought, the results are even more powerful.