Using his telekinetic abilities, Grand Master Yoda levitates Luke Skywalker's X-wing. Alter was a collection of Force powers within the doctrines of the Jedi Order. Considered a sophisticated method of wielding the Force, it was instructed to Jedi Knights following their mastery of the basics of Control as Jedi Initiates and Sense as Padawans. The Alter practice centered around the manipulation of objects, the influencing of other individuals, and the modification of the surroundings. Numerous untrained Force-sensitives discovered similar skills unintentionally, frequently leading to catastrophic outcomes. The Jedi characterized the failure to advance to the Alter practice as the capacity to sense the Force without the ability to control it.
The primary Alter skills consisted of telekinesis, affect mind, and Alter Environment. Telekinesis represented the central power, encompassing Force push and Force pull. Affect mind had the potential to suppress the will of those with weaker minds, while Alter Environment granted the practitioner command over the physical world. This could involve generating a tornado, lightning, or other natural events.