Luminosity is often translated as "clear light," which is a literal rendering of the Tibetan rather than the Sanskrit. Trungpa Rinpoche did not like that term, although he did sometimes use it in his talks, which form the basis of his books, because it is so well known. He felt it had become inextricably associated with such notions as the light at the end of the tunnel in near-death experiences, and that it gave too much of an impression of ordinary, visual light, whereas what is meant is an extremely subtle concept that he thought would be conveyed better by "luminosity."〔Fremantle, Francesca (2001). ''Luminous Emptiness: Understanding the Tibetan Book of the Dead''. Boston: Shambala Publications. ISBN 1-57062-450-X. p.199〕