The Nechisti Order was a Nechani religious order, whose members devoted their lives to the Ancestral Spirits. They generally kept to their affairs, though they did welcome those who wished to seek the Spirits for themselves. The Nechisti Council made decisions for their religion.
In 2373, Kes was severely injured by an encounter with a Nechisti shrine. A Nechisti Order monk subsequently served as Kathryn Janeway's guide when she sought to undergo a sacred ritual to save Kes' life. (VOY: "Sacred Ground")