@Hal 9000 Can you remove the voice-overs of Mace Windu and Aayla Secura speaking when Rey fights Darth Sidious? It contradicts previously established lore in the pre-sequel trilogy canon, in which only Obi-Wan, Yoda, Qui-Gon, and Anakin knew how to become Force ghosts.
Here’s a question, how did Anakin know how to become a Force ghost anyway?
Well, this is obviously only a question once the prequels are factored in, as in 1983 one assumed that’s just what Jedi all do. I think the best answer would be that Obi-Wan and Yoda helped him.
Right. If we only consider the OT, then there’s no problem hearing voices of Jedi like Mace Windu. But if we do consider the PT, we are forced to assume that Anakin learned after death how to become a force ghost. Which means someone like Windu could too.
When you die in Star Wars without learning how to become a Force ghost, you irreversably cease to exist. As Hal pointed out, Obi-Wan and Yoda might’ve helped Anakin, except (from what I view) maybe before his death.