In "", the character is mentioned several times throughout the series. Qui-Gon appears in two episodes of the third season. On the mysterious planet Mortis, he informs Obi-Wan in the episode "Overlords" and later Anakin in the episode "Ghosts of Mortis" about the three beings who believe, like Qui-Gon, that Anakin is the Chosen One: the Father (the Unifying Force manifestation), the Daughter (the light side incarnation) and the Son (the dark side embodiment). Later in the sixth-season episode "Voices," Yoda is contacted by the disembodied voice of Qui-Gon. Despite his presence on Mortis, Qui-Gon is revealed to have not been able to manifest a semi-physical form. Following his deceased friend's instructions, Yoda goes on a quest across the galaxy in order to learn the secrets of becoming one with the Force as well. During one of the tests of the Force Priestesses, an illusion of Qui-Gon appears along with Jedi Master Count Dooku and Obi-Wan. It is only after Yoda passes his test that he is allowed to learn Qui-Gon's technique to retain one's consciousness after death.