A Force Ghost can travel independently ... Obi-Wan Kenobi could not commune with his master Qui-Gon Jinn until he had ceased to close himself off in the Force, and Yoda couldn't manifest to ...

The ability to return after death as a Force ghost is a secret that had been lost to the Jedi, but was rediscovered by Qui-Gon Jinn (Obi-Wan's mentor in Star Wars Episode I: The Phantom Menace).

Qui-Gon Jinn and Obi-Wan Kenobi's friendship is ... He is always looking to guide Obi-Wan, and the fact he came back to him as a Force Ghost at the end of the Obi-Wan Kenobi series proves that ...