Symmetry is the idea of equally similar, or contrasting, elements forming a harmonious whole.
I try to seek balance in my life & often notice my tendency to create symmetry in the way I arrange objects or artwork. Sometimes I don't even notice until later.
This is a video called "Symmetry" that explores the many examples of similarity & duality we can find in the world.
Of course, all of these comparisons exist only inside the pattern-seeking human mind.