The Jedi Temple of Ilum was a series of ancient structures constructed by the early Jedi Order as they spread out from Tython and established training grounds across the galaxy. Because of Ilum was a wellspring of Force-energy, early Jedi were attracted to the world and quickly disocvered its treasure trove of Force-attuned crystals. Erecting several way houses and outposts across the planet, the planet came to house a massive Jedi temple built over an extensive subterranean network of caves in which the Order's rare lightsaber crystals grew. While the training grounds were eventually abandoned, Ilum's temple served as a mecca for Jedi seeking to construct their very own lightsaber. Following the Clone Wars, the Order once more began to use Ilum as a meditative retreat and scientific outpo