Yin is dark, cold, receptive, magnetic.
Yang is light, hot, giving, active.
Yin and Yang are relative. The element of water is usually considered very Yin, but fast-moving water is Yang compared to still water.
Both are present in everything. Rather than being opposites, they are two sides of the same coin. A cup is Yang, but the empty space inside is Yin.
Daoists believe that everything contains the seed of its opposite; in this way Yin and Yang nourish and empower each other. Yin can become Yang, just as night becomes day.
This work was a recent commission for a customer to give to a close friend.
If you know someone who would like a unique gift, you can find details on commissioning a custom-made calligraphy work here.