This Symbol (Yin-Yang) represents the ancient Chinese understanding of how things work. The outer circle represents "everything", while the black and white shapes within the circle represent the interaction of two energies, called "yin" (black) and "yang" (white), which cause everything to happen. They are not completely black or white, just as things in life are not completely black or white, and they cannot exist without each other.
While "yin" would be dark, passive, downward, cold, contracting, and weak, "yang" would be bright, active, upward, hot, expanding, and strong. The shape of the yin and yang sections of the symbol, actually gives you a sense of the continual movement of these two energies, yin to yang and yang to yin, causing everything to happen: just as things expand and contract, and temperature changes from hot to cold.
Illness was seen as a disturbance in the balance of Yin and Yang or the Five Agents caused by emotions, heat or cold, or other influences
Water is an embodiment of Yin as fire is an embodiment of Yang. Yang creates the air, while Yin creates the senses, which belong to the physical body When the physical body dies, the spirit is restored to the air, its natural environment. The spirit receives its nourishment through the air, and the body receives its nourishment through the senses
"Heaven was created by the concentration of Yang, the force of light, earth was created by the concentration of Yin, the forces of darkness. Yang stands for peace and serenity; Yin stands for confusion and turmoil. Yang stands for destruction; Yin stands for conservation. Yang brings about disintegration; Yin gives shape to things....
Balancing your Yin-Yang or negative and positive energies, Q-Ray products are designed to maximize the body’s bio-energy to improve performance and provide an overall state of well-being. World-class athletes even wear these bracelets when they need an edge.
These products are said to relieve discomfort, improve balance, increase energy and give many an increased sense of well being.