Parallel structures are frequently used within sentences to underscore the similarity of ideas. They may also be used to bind together a series of sentences expressing similar information. In the following passage describing folk beliefs, anthropologist Margaret Mead presents similar information in parallel grammatical form.

Actually, almost every day, even in the most sophisticated home, something is likely to happen that evokes the memory of some old folk belief. The salt spills. A knife falls to the floor. Your nose tickles. Then perhaps, with a slightly embarrassed smile, the person who spilled the salt tosses a pinch over his left shoulder. Or someone recites the old rhyme, “Knife falls, gentleman calls.” Or as you rub your nose you think, That means a letter. I wonder who’s writing?

—Margaret Mead, “New Superstitions for Old”