Immortality

Immortality, or eternal life, was a state in which a living being could live without ever dying. Darth Plagueis, a Sith Lord in the years prior to the Clone Wars, lusted for immortality. According to his apprentice, Darth Sidious, Plagueis manipulated the midi-chlorians to both create life and seek immortality. Those who followed the light side of the Force and had the appropriate training could achieve a form of immortality by retaining their consciousness after their physical deaths. Qui-Gon Jinn rediscovered this ability and, in turn, taught Yoda and his apprentice Obi-Wan Kenobi how to attain it. The redeemed Anakin Skywalker accomplished the state of immortality, as well as his children, Luke Skywalker and Leia Skywalker Organa Solo, years later.

Darth Sidious was able to cheat his upcoming death by transferring his spirit into a clone body while falling into the reactor core of the second Death Star. He later sought to prolong his existence by futilely manipulating his grandchild Rey into killing him so he could live further by possessing her body.

Text and facts from the “Immortality” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.