The Japanese term "Zen" (禅) means a Buddhist doctrine that emphasizes meditation as a way of attaining enlightenment or insight into one's true nature. The word "Zen" is derived from the Chinese word "Chan" (禪), which in turn is a transliteration of the Sanskrit word "dhyana" (ध्यान), meaning "meditation". Zen originated in India, but was developed further in China and Japan by various schools and masters. One of the key concepts in Zen is "kensho" (見性), which means "seeing one's (true) nature" or "seeing the Buddha-nature". Kensho is also translated as "awakening" or "satori" (悟り) in Japanese.