"I must tell you something about necks in Japan, if you don't know it; namely, that Japanese men, as a rule, feel about a woman's neck and throat the same way that men in the West might feel about a woman's legs. This is why geisha wear the collars of their kimono so low in the back that the first few bumps of the spine are visible; I suppose it's like a woman in Paris wearing a short skirt. Auntie painted onto the back of Hatsumomo's neck a design called sanbon-ashi-"three legs." It makes a very dramatic picture, for you feel as if you're looking at the bare skin of the neck through little tapering points of a white fence. It was years before I understood the erotic effect it has on men; but in a way, it's like a woman peering out from between her fingers. In fact, a geisha leaves a tiny margin of skin bare all around the hairline, causing her makeup to look even more artificial, something like a mask worn in Noh drama. When a man sits beside her and sees her makeup like a mask, he becomes that much more aware of the bare skin beneath."