In some eastern religions, a Satguru (or Sadguru) is a person who is considered to have achieved enlightenment, and who can help others to achieve the same. The word means "true teacher" in Sanskrit (), "sat" meaning "true" and a guru meaning "teacher". The title means that his students have faith that the guru can be trusted and will lead them to moksha, nirvana or inner peace. It is based on a long line of Hindu understandings about the importance of the guru.