Cloudscape

Everything has both a yin and yang aspect, and therefore in some aspects it wil be yang, in others yin; in particular, it may be yin in the more material world yet yin in the more spiritual world, or the other way around. It is clear, then, that even this is relative as are all things.

Anger, for instance, is an emotion and therefore yin when compared to material things, but for an emotion is a yang emotion. A dance is an example of the opposite.