The Gathering/Legends

The Gathering was a part of the training process of the Jedi Order which also served as a rite of passage for Jedi Initiates prior to their beginning training as a Padawan learner.

As of the Clone Wars, the Gathering was an exercise which took place on the ancient Jedi world Ilum. A group of Jedi Initiates would be transported to the frozen world, ostensibly in order to claim their lightsaber lightsaber crystal for the first time. In truth, however, the process was a lesson to teach the young Jedi to overcome their own personal fears or failings.