The Tsahìk is the spiritual leader of a Na'vi clan, and the most important female member. It is up to her to interpret the will of Eywa. In most cases, the Tsahìk is female and mated with the clan leader (Na'vi name: Olo'eyktan). The Tsahìks of the Omaticaya and Tipani clans are Mo'at and Sänume, respectively. Neytiri, Mo'at's daughter, will eventually inherit her mother's position once Mo'at passes down the duty to her.
- It should be noted that the Tsahik also performs rituals, such as the Consciousness Transfer for Grace Augustine and Jake Sully.
- Tsahik is the most respected woman in any Na'vi clan.