A The Eldar '''Spirit Stonespirit stones''' aka are called '''WaystoneWaystones'''¹ . A spirit stone is a small, seemingly precious stone carried on the chest of an [[Eldar]]'s chest, used to save their souls from destruction by Slaanesh. At the moment of the Eldar's death the stone acts like a 'psychic trap' and captures absorbing his soul psychic self and prevents preventing it from entering into the [[Warp]]. This is done to prevent the prevents an Eldar's soul from being consumed by the nemesis of the Eldarrace: [[Slaanesh]], named by Eldar as the '''Great Enemy''', and also as '''She Who Thirsts'''. Slaanesh still hungers greatly for Eldar souls. The stone is then brought to the heart of the [[Craftworld]] and placed within the [[Infinity Circuit]], where the soul is quite secure.

The Waystone can then be brought back to the Eldar's own [[Craftworld]] and embedded into its wraithbone core where it will grow into a larger spirit stone. Once the stone is implanted, the Eldar's soul can travel freely through the wraithbone, mingling with other Eldar souls and forming part of the communal spirit of the Craftworld itself. All the souls within a Craftworld are collectively known as the [[Infinity Circuit]]. In times of dire need, the Eldar are also able to retrieve the Spirit Stones spirit stones of long dead Eldar heroes and place them into the artificial bodies of [[Wraithguard]]s and [[Wraithlord]]s. These constructs are then piloted by the Eldar soul, which experiences reality as a dream. This process is considered necromancy in Eldar culture and only done as a last resort. The Eldar [[Warlocks]] who specialize in this process are known as [[Spiritseer]]s. [[Iyanden]], an Eldar Craftworld with a very small population is known for its greater use of these 'living dead'.