(1) Yin and Yang, and
(2) the Five Elements.
Feng Shui utilizes the concepts of Yin and Yang and the Five Elements to help rebalance the competing energies in your home. The Feng Shui elements have a strong role to play for balancing the Chi of a space or home. In order to implement the spiritual techniques of getting a positive Chi flow in your Feng Shui home, one must be able to see how the concepts of yin and yang, the five elements, and the overall concept of Feng Shui relate to your home and each item in your home—things like computer, potted plant, fish tank, flower vase, etc. All such things are made of the Feng Shui elements and have either yin or yang energies contained in them.
Yin & Yang
In Chinese philosophy, the concept of yin yang is used to describe how seemingly or opposing forces are interconnected and interdependent in the natural world. Many natural dualities - e.g. dark and light, female and male, low and high - are cast in Chinese thought as yin yang.
The relationship between yin and yang is often described in terms of sunlight playing over a mountain and in the valley. Yin ('shady place' or 'north slope') is the dark area occluded by the mountain's bulk, while yang ('sunny place' or 'south slope') is the brightly lit portion. As the sun moves across the sky, yin and yang gradually trade places with each other, revealing what was hidden and what was revealed. Yin is usually characterized as slow, soft, insubstantial, diffuse, cold, wet, and tranquil. It is generally associated with the feminine, birth and generation, and with the night. Yang, by contrast, is characterized as hard, fast, solid, dry, focused, hot, and aggressive. It is associated with masculinity and daytime. Yin and yang are complementary opposites within a greater whole. Energy is not solid or concrete; it is fluid and transferable, and that goes for all objects and people, too. Something that is yin can become more yang. Something that is yang today can turn around to become more yin tomorrow. Both yin and yang are essential. Yang energy is essential because it helps you stay motivated and gives you the push you need to get things done. But too much yang energy can be harmful. It can make one feel chaotic, frenzied and over-stimulated. It can also make one feel too passionate. Feng Shui elements have the power to balance the Yin and Yang energies of a space. One can utilize the concepts of yin and yang and the five elements to help rebalance the competing energies of home.