- "The real way to harm an Ewok is through his Soul Tree. Once you destroy an Ewok's Soul Tree, you destroy his will to live."
- ―Murgoob, Dulok oracle
A Soul Tree was a sacred tree planted in the forest of the moon of Endor at the time of an Ewok's birth. The Ewok was thought to be spiritually connected to the tree, meaning that the condition of the tree hinted at the health or character of the Ewok to which it was bound. Upon the Ewok's death, his or her hood was attached to the Soul Tree's trunk, and the Ewok's spirit was thought to take up residence in the totem tree. At least one Ewok spirit is known to have stayed with its Soul Tree after death, protecting it from harm, that of Erpham Warrick.
Due to their connection to the ancients, the Soul Trees as a whole were thought to be a source of power for Ewok shamans. These holy Ewoks often tried to make contact with the ancestors and to draw upon their power through the medium of the Soul Trees. Shamans could be very secretive about these rituals.
Unfortunately, the enemies of Ewoks are well aware of the strategic value destroying the soul trees to deeply traumatize the species and make them easily conquerable. To that end to defeat the Ewoks of Bright Tree Village, Morag the Tulgah witch tried to destroy their Soul Trees by burning them with enslaved Wisties. The plan was thwarted when Wicket W. Warrick and his friends doused the trees in magical foam. . The second major chronicled attempt was when the Duloks captured Erpham Warrick's Ewok battle wagon rebuilt by Wicket to ram down the soul trees. The young Ewok again thwarted this attempt by collapsing the wagon before it could cause significant damage.
Kaink was the guardian of Bright Tree Village's Soul Trees.
- Wicket Goes Fishing: An Ewok Adventure
- Star Wars: Ewoks—"The Cries of the Trees" (First appearance)
- Star Wars: Ewoks—"Wicket's Wagon"
- Star Wars: Ewoks—"The Wish Plant" (Mentioned only)
- Star Wars: Ewoks—"Night of the Stranger"
- A Guide to the Star Wars Universe, Second Edition
- The Essential Guide to Characters
- The Illustrated Star Wars Universe
- Star Wars Encyclopedia
- Star Wars: The Official Starships & Vehicles Collection 7