When we have complements or oppositions, change occurs.
For many artists fame complements the value of creative self-expression. Ludwig van Beethoven loved composing music, but he probably would have enjoyed it less if no one ever listened to the product.
Laying complements next to each other makes them scintillating, but mixing them produces a 'muddy' rendering of each color. The mud is good stuff.
Their fingers seemed to fit together in just the right way- effortlessly clasped,like perfect complements.
The knowledge that refuge is available, when and if needed, makes the silent inferno of the desert more easily bearable. Mountains complement desert as desert complements city, as wilderness complements and completes civilization.