Banana Yoshimoto: Helix

Sashimi- A Japanese food consisting of fresh, raw seafood that is thinly sliced

http://www.japan-guide.com/e/e2044.html
One flew over the cuccoo's nest- A movie made in 1975 directed by Milos Forman about a man who get patients together to take on Nurse Ratched.
http://www.imdb.com/title/tt0073486/
Prisms- a device used to refract light