My friends and I share six-word memoirs, which are supposed to be a story in a nutshell. This was the one I wrote yesterday: “Naked, I paraded through the jimjilbang.” I sent this stingy, six-word sentence out to them with no further explanation. Let them wonder. But for you, I’ll flesh it out: I recently visited a Korean bathhouse, and here’s a crash course in all things jimjilbang.