How Does Rey Have A Yellow Lightsaber Now?
In the movie’s final scene, Rey travels to Tatooine to bury Luke and Leia’s lightsabers in the desert where Luke grew up. Though it looks like this leaves her without a weapon, Rey then pulls out a new lightsaber we’ve never seen before, apparently made out of her staff. It’s left unclear how she created this, but its color may offer a big clue.
Yellow is a rare color for a lightsaber, but there have been a few uses of it in the wider Star Wars universe. For one, the Legends character, Jayden Korr, had a yellow lightsaber which he created by purifying an unstable red kyber crystal. This is important as we know that Kylo Ren’s lightsaber was made from a cracked red crystal.
Maybe we can infer, then, that Rey traveled back to the Death Star’s remains, found Kylo’s discarded saber and purified its crystal to create her own. Not only does this offer a sweet connection to Ben, considering their parting romantic kiss, but also symbolizes how Rey herself is a purified Palpatine.