Force powers were the manifestations of a Jedi, Sith, or other Force-adepts connection with the Force, an energy field that binds everything in existence. These powers were supernatural abilities not described by scientists. The powers were usually taught by Force-using organizations, but there were examples of individual, self-improving methods of learning to use the Force. There were many kinds of Force powers, but not all were available to a single person since some of them required a deep connection with one side of the Force and others were secret or very rare. Also, as a side note, it should be taken into account that the Force is not "magic" nor does it have specific "spells" or "power" and they are far more interrelated than the list might suggest. Alternatively, the Force was used as a form of magic by users such as the Witches (ex. Nightsisters, Mind-witches) and users of Sith magic and Sith alchemy.