Have you ever had a sense that two things just naturally belong together? Or that when they’re apart, something is missing? For me, peanut butter and jelly are at the top of this list. And then there’s red wine and chocolate, macaroni and cheese, fish and chips… I’m sensing from my examples that perhaps I should not have skipped lunch today.
But there are plenty of non-edible examples too: yin and yang, bow and arrow, needle and thread…. You get the picture: things that naturally click.