The Force is a metaphysical and ubiquitous power in the Star Wars fictional universe that is created by life and binds the galaxy together. It is a mysterious energy field that gives extraordinary abilities to those who are sensitive to it, such as levitating objects, tricking minds, and seeing things before they happen. Some Force-sensitive characters derive special, psychic abilities from it, such as telekinesis, mind control, and extrasensory perception. The Force has been compared to aspects of several world religions, and the phrase "May the Force be with you" has become part of the pop culture vernacular.

Different species have their own names for the Force, their own metaphors for how it’s perceived, and techniques for learning the powers it can grant. The Jedi believed that midi-chlorians, microscopic life-forms found within living cells, communicated the will of the Force, which could be understood through meditation. The Force is sometimes referred to in terms of "dark" and "light" sides, with villains like the Sith drawing on the dark side to act aggressively while the Jedi use the light side for defense and peace.

In Star Wars Legends, the Force was initially discovered, and scholars broke it down into The Four Aspects of the Force: the Living Force, the Unifying Force, the Cosmic Force, and the Physical Force. These Four Aspects allowed a student to better grasp this elaborate concept, and it also influenced the way a person would use the Force, depending on if they ascribed to one aspect over the other.

In summary, the Force is a mysterious energy field created by life that binds the galaxy together and gives extraordinary abilities to those who are sensitive to it. It has different aspects and is sometimes referred to in terms of "dark" and "light" sides.