Force separation

Force separation was a force technique created to break a force bond between a Jedi master and their padawan. Extremely difficult to perform and carrying a risk of severe side effects, it was employed only when a Jedi council had decided unanimously that a master was having a corruptive influence upon their pupil. The technique would render both the master and the apprentice incapable of perceiving each other; once performed, they would not be able to each other's words, nor read each other's thoughts, and would not even be able to see each other even if they were standing only inches away from each other. The side effects could be extreme; when the technique was used to separate Ashek Sum from her padawan, Chokusha Tsewang, Tsewang temporarily lost her connection to the Force, while Sum went mad and became the Sith Lord Darth Rakena.