My sister Kwan believes she has yin eyes. She sees those who have died and now dwell in the World of Yin, ghosts who leave the mists just to visit her kitchen on Balboa Street in San Francisco.
"Libby-ah," she'll say to me. "Guess who I see yesterday, you guess." And I don't have to guess that she's talking about someone dead.

The Hundred Secret Senses (1995).