Palpatine further clarifies that he had been "every voice [Kylo] had ever heard inside his head." Meanwhile, Leia's resistance had also been clued into Sheev's little game of chess (cue the ...

Sheev Palpatine was the culmination of everything ... from those who he considered to have failed. In Legends, Palpatine did indeed head to the Sith homeworld, where he was rejected by the spirits ...