The Tree of Souls is a sacred site for the Omatikaya Na’vi clan and their closest connection to Eywa. At the center of a caldera-shaped enclave is a tall willow-like tree with long, bioluminescent tendrils and a large root system that radiates out. The Na’vi link to Eywa through the tree to petition for guidance, perform a healing rite or to express gratitude for maintaining the balance of life.