In the paired opposites, the two sides complement each other (like yin-yang).
Each side recognizes and accepts the other side.
The two sides do not try to be like one another, and they do not try to suppress or dominate one another. They are distinct, but interconnected.
So the meaning of this concept of opposites is that nothing exists by itself, but rather is in relation to other things, and they have an effect on one another.