what/who are yin and yang

Here are a couple of interesting sites on that topic.

http://fly.cc.fer.hr/~shlede/ying/yang.html

http://www.chinesefortunecalendar.com/YinYang.htm

thanx

Yin and yang are fundamental concepts in Chinese philosophy and culture. They represent the dualistic nature of the universe and describe two opposing but complementary forces or principles that exist in all aspects of life.

Yin represents characteristics such as darkness, coldness, femininity, passivity, and contraction. Meanwhile, yang represents characteristics such as lightness, warmth, masculinity, activity, and expansion.

To understand the concept of yin and yang more deeply, you can explore various resources such as books, articles, or online references. Additionally, studying Chinese philosophy, specifically Daoism, can provide valuable insights into the concept of yin and yang.