Force dyad

A Force dyad, also known as a dyad in the Force, was a pairing of two Force-sensitive beings linked together by a unique Force-bond—that was unbreakable—that made them one in the Force. The power of a dyad was as strong as life itself, with the individuals forming the dyad sharing a connection that spanned across time and space.

Members of a dyad were attuned to each other's senses completely, including what they saw, heard, and felt. They possessed unique Force powers, such as the ability to physically interact across many light-years in the galaxy. A dyad could also utilize Force healing to such a degree that, should either member of the dyad die, the other would be able to transfer enough of their own Force energy to resurrect them, albeit at the cost of their own life.

A prophecy foretold that there would be a dyad in the Force, which had been unseen for generations by the time of the New Republic Era. The prophesied dyad was realized within Ben Solo and Rey. Although they were enemies during the war between the First Order and the Resistance, Solo and Rey shared a unique bond that featured prominently in the lore of the Sith Eternal cultists. During the battle on Exegol, the life force of their bond was used to restore the Sith Lord Darth Sidious.

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