Force nexus Force nexus , or vergence , is a term used to refer to any location where the Force , or any particular aspect of the Force , was unusually strong . Such nexuses could be caused by any number of different events . Korriban in general and the Valley of the Dark Lords specifically were nexuses of the dark side of the Force due to the long - term presence of the Sith Lords , Nam Chorios was a nexus of the Force due to the omnipresence of the Tsil s , a form of life ; Vjun was a nexus of the dark side due to the horrible events of its past , the Dark Side Cave on Dagobah and a spot in orbit over Endor were tainted by the death of dark side users , Byss was a nexus of the dark side of the Force because it housed Palpatine ' s clones and his various Sith alchemy experiments and the Force energies sucking the lives on the planet . There may have been a nexus in Lumiya ' s habitat asteroid , where Alema Rar was able to draw energy from it to power her Force specters . The natural mountain on which the foundation of the Jedi Temple on Coruscant rested was a nexus . This became tainted by the dark side with the defeat of Lord Nyax at the site of the ruined Temple during the Yuuzhan Vong War . The most powerful nexus was the Valley of the Jedi , where the spirits of several thousand Jedi , both light and dark , were trapped after the Seventh Battle of Ruusan , a perhaps limitless source of Force energy even after the spirits were freed . In 14 ABY , the Disciples of Ragnos drained several Force Nexuses of their Force Energy with the Scepter of Ragnos . Force objects . Objects left in the presence of a Force nexus for extended amounts of time eventually became saturated with the Force , which imbued the object with special abilities , like an edge that will never dull , the ability to absorb some Force powers like Force lightning and electric judgment , or even the ability to enhance the wielder ' s perception of time , allowing him to think and react faster than otherwise possible . This effect allowed even a being who wasn ' t Force - sensitive to use the weapon to a great degree . Further , objects ( such as a holocron ) imbued with a particular aspect of the Force — be it light or dark — could actually become so saturated as to make their very presence intolerable to those of opposite alignment . In 29 BBY , Obi - Wan Kenobi and Anakin Skywalker encountered a nexus of powerful dark side energies in an underwater geyser crater on the planet Kodai , where the ancient Sith Holocron of King Adas was hidden . The strong underwater nexus was perceived even with the evil artifact having been stolen from its burial place . As the Jedi duo pursued the holocron ' s thief through hyperspace , its dark energies were again perceived as a powerful " ripple " or " wave " in the Force , causing the Jedi to quickly exit hyperspace to investigate . Behind the scenes . The first Force nexus to appear in Star Wars continuity was the cave on Dagobah , seen during . The concept of a location imbued with Force energy was then expanded on in the 1997 video game " " . In the 2001 video game " , " a Force nexus is a power - up which grants the user unlimited Force powers for a limited time .