Besides the Tree of Souls the Tree of Voices is one of the most sacred areas to the Omaticaya people. It is here they go to choose a mate under the bioluminescent tree and if Eywa doesn’t interfere they become mated for life. To be able to choose a mate a Na’vi must have tamed an Ikran and been accepted into the tribe. Please have read up on the Na'vi before choosing a mate.