Disturbance in the Force / Legends A disturbance in the Force was an unusual fluctuation or anomaly in the Force that could be sensed by Force - sensitives . These disturbances could range in intensity from mild fluctuations to full - blown psychic trauma that would cause the individual to experience literal , physical pain and perhaps even mental shock . Types of disturbances . " " I felt a great disturbance in the Force , as if millions of voices suddenly cried out in terror and were suddenly silenced . " " < br > ― Obi - Wan Kenobi , sensing the destruction of Alderaan Wounds in the Force were the most easily recognizable form of disturbance . Such massive disturbances were created from the most catastrophic events of death and destruction . Force adepts could often feel such disturbances from across the galaxy . Darth Sidious had managed to trace Darth Maul and Savage Opress ' location on Mandalore via a disturbance in the Force , resulting in him traveling to Mandalore to personally confront the two Sith Nightbrothers . While death caused the greatest ripples in the Force , many other developments in the Force caused disturbances such as alignment shifts . One such disturbance was sensed by Master Luke Skywalker when he no longer felt the dark side aura around the Massassi Temple and , years earlier , when he felt great power coming from a cave during his training on Dagobah . In 9 ABY , Leia Organa Solo sensed this when she passed through the place in orbit around Endor where Emperor Palpatine had died . Luke and Mara Jade also sensed this in his former palace . In the aftermath of the Battle of Hoth , Palpatine sensed a disturbance in the Force from Luke Skywalker ' s Jedi potential , and demanded that Darth Vader , who had also felt it , make contact with him on the matter . The dark side of the Force often created disturbances — during the final years of the Mandalorian Wars , the Jedi Malak felt great amounts of power coming from the inside of the Rakata n ruins on Dantooine , stating that " he could feel its power " . Almost a decade later , Kreia felt the dark side aura emanating from Korriban and she refused to even set foot on the planet ' s surface when Meetra Surik traveled there . Disturbances in the Force caused by the dark side often had powerful effects on surrounding flora and fauna . When the Jedi Padawan Juhani briefly turned to the dark side , she drove the Kath hounds on Dantooine mad — causing them to become extremely aggressive and violent . The fractured planet Malachor V was so corrupted with the dark side that it affected the life on its surface — namely , the Storm beast s . Another creature corrupted by the dark side was the Terentatek . The power and presence of the dark side gradually distorted their shapes and corrupted their minds . As a side effect , terentatek became virtually immune to the effects of the Force . Other disturbances may occur during unnatural events in the Force . One such event occurred when Kyle Katarn first felt the power of the Reborn warriors . After his first duel with one of the Reborn , he remarked that his encounter with the warrior felt strange . He stated that the Reborn looked like a Jedi and fought like a Jedi , but that his power felt warped . The Reborn and the Shadowtrooper s were Dark Jedi that had been artificially infused with the Force . As such , when a Force adept came near them , they could feel the unnaturalness of their power .