Large 3′ X 5′ black and white flag featuring the yin yang symbol on a solid black background. The yin-yang comes from ancient Chinese philosophy demonstrating the balance between opposite forces, or dark and light.

Yin, Chinese for “female” or “moon,” represents darkness, femininity, passivity, and the earth. Yang (“sun” or “male”) represents light, masculinity, activity, and the heavens. The balance of yin and yang were seen to influence health and order within an individual, society, and the entire universe. — (from Dictionary.com)