Feng shui is an ancient Chinese philosophy involving balancing the flow of chi or life force energy. It developed over 3,000 years ago and aims to harmonize individuals with their surrounding environment. Key concepts include yin and yang, the five elements of wood, fire, earth, metal and water, and using items like plants, colors, and furnishings to enhance positive chi flow. A feng shui evaluation examines factors like location, layout, and orientation to provide recommendations for optimizing health, relationships, and prosperity.