In the sequel "", the scavenger Rey (Daisy Ridley) discovers Luke on Ahch-To and convinces him to train her in the ways of the Force. During her training, Luke describes the hubris of the past Jedi that allowed Darth Sidious to rise to power. She also discovers several ancient Jedi texts hidden away in a tree. Rey learns the truth about Ben's fall to the dark side and believes herself to be his only chance of redemption. Luke decides to stay on Ahch-To and attempts to burn down the tree with the texts, but cannot bring himself to do so. However, Yoda appears as a Force Ghost and burns the tree, teaching him that failure is just as important as success, and that masters are defined by those who surpass them. Near the end of the film, Luke confronts Kylo on the planet Crait. It is subsequently revealed that Luke had been projecting himself from Ahch-To; he dies from the effort and becomes one with the Force. Rey is shown to have taken the sacred Jedi texts before she left Ahch-To, in order to continue her training.