Joy Joy was one of five Force Priestesses who had sustained their consciousness in the Force after death and dwelt inside the Wellspring of Life . She manifested as a being wearing a black robe and a cheerful mask , and acted in a manner befitting the emotional aspect she represented . When Jedi Grand Master Yoda came to the planet seeking immortality , she and the other priestesses set him a series of challenges to prove he was worthy of the " great gift " . Yoda passed each of their tests , eventually traveling to the Sith homeworld Moraband where his final test — facing Sith Lord s Darth Sidious and Count Dooku — was out of Joy and the other priestess control . Yoda succeeded , and the priestess informed him that the spirit of his old friend Qui - Gon Jinn would commune with him to teach him the ways of manifesting in the Force after death . Biography . Joy was one of five Force Priestess who died but was able to manifest herself in the Force after death , existing between realms . She and the other priestesses — Serenity , Sadness , Anger and Confusion — manifested themselves inside the Wellspring of Life at the center of the the galaxy . There they watched all beings strong in the Force from their home . During the Clone Wars between the Galactic Republic and the Confederacy of Independent Systems , Jedi Grand Master Yoda sought out the Force planet to learn how to survive death on the advice of his deceased friend Qui - Gon Jinn , another who had manifested in the Force after death . Serenity was the first to greet the Grand Master , informing him that he was late and that the priestess had been waiting for him . She led Yoda to a gathering room where the other priestesses manifested around him . Each of the priestesses reacted to Yoda in a manner befitting the emotion they represented , with Joy expressing the belief that the Grand Master had the ability to succeed in learning to sustain his consciousness after death . Serenity then asked for the blessing of the other priestesses and the five joined hands , beginning to rapidly spin around Yoda and becoming a blinding blur that transported him to elsewhere within the planet , where Serenity would begin his testing . The Grand Master was successful in his first test , overcoming his fears , after which Joy and the other priestess manifested behind Serenity as she claimed Yoda must trust in their teachings to succeed . The priestess then directed him to pass through the Valley of Extinction , warning him that he must do so without emotion otherwise he would see their faces and be seduced . Yoda was successful in resisting the temptation and made it to the other side of the valley . There Joy , Anger , Sadness and Confusion set his final test , traveling to the Sith homeworld of Moraband to face his greatest fears . Once their challenge was set , they de - manifested , causing their robes and masks to fall to the ground . On Moraband , Yoda was confronted by spectre of the Sith Lord Darth Bane who tried to tempt him to the Dark side but was unsuccessful . Joy and the other priestess then manifested before Yoda , warning him that while all his previous trials have been conjured by them , the final test was out of their control . Yoda was to enter a chamber of darkness where the Sith once sacrificed Jedi , and where he would have to face the Sith of his time , Darth Sidious and Count Dooku . The five then faded away , leaving the Grand Master alone for his final challenge . Yoda faced the Sith , and emerged from the chamber , where he was informed by Serenity that Jinn would commune with him and train him to become immortal . Personality and traits . Joy and the other four priestess , who referred to each other as cousins , embodied the connection between the Living Force found in lifeforms and the greater Cosmic Force . Her form was mutable , but she manifested as a gray - skinned , aspect of the emotion joy , with yellow eye s . Her manifestation wore a black robe and a white smiling mask . When interacting with Yoda , Joy acted in a cheerful manner which suited the aspect she represented . After Serenity brought Yoda before the priestess , Joy was pleased to see him , claiming he was full in the Force and telling Anger that it was nonsense that the Jedi should not of been brought before them . She believed that Yoda would be successful in learning to manifest in the Force after death , but still laughed when Anger pointed out that he should not be scared as he did not know what it was he had to face . Behind the scenes . Joy and the other Force Priestesses were created for Destiny and Sacrifice , two episodes of the sixth season of " " . After the two episodes had been completed but before they aired , the television series was cancelled ; however , all of the episodes which had been completed for the sixth season were released in 2014 under the title " " on . Joy , like the other priestesses , was voiced by Jaime King , who recorded the dialogue while swapping between all five voices , except for some specific sound clips like laughs . In a Q & A session on the " Lost Missions " , " Clone Wars " series director Dave Filoni said that he considered the five Force Priestesses to be one being who had died and become a Force ghost , splitting over time and existing in the Force with a limited power to manifest themselves . He also said that the priestess did not exist on the terms of good or evil .