Bogey A Bogey was a kind of creature that lived in the Spice Mines of the planet Kessel . Biology and appearance . These beings were noted for being phosphorescent non - sentient creatures that floated through the black tunnels on Kessel . They seemingly fed on lichen and other forms of underground fungus . The more remarkable trait demonstrated by these beings was their capacity to pass through solid rock . However , they were unable to pass through the webs created by energy spider s , who spun the material to ensnare the bogeys in order to feed on them as their favored meal . Bogeys also had an effect on the black glitterstim strands produced by the spice spiders and gave them their blue photoactive nature . If these creatures would pass through machinery that contained energy , the machinery would power down , and sometimes never power back up . Only after their residual energies dissipated did the crippled electronics return to power . Some speculated that the creatures were not alive and could not be detected by the Force . Force - sensitives were only capable of feeling energy and intent from these beings . Large colonies , however , were able to be sensed by a trained Force user ; though there was no life within them , hostile intent could be discerned . In reality , their closest function was similar to datacards with access to their contents being done by simple touch with its entire purpose being communication . A reservoir of energy was contained within them and had the ability to communicate . It was also a big store of fresh data that was linked to the machinery underneath Kessel . The information included thousands or millions of three - dimensional data that needed to be delivered . These creatures had a wide array of color schemes ; they also emitted a musical - type of noise . The size of the bogeys tended to vary with some of these swirling balls of colored light being large enough to fit an R2 - series astromech droid . A hand was able to brush across its outer nimbus with an individual feeling static electricity from this contact . When approaching beings , they simply hovered and made curious clacking chattering noise . History . The source of the bogeys came from machinery deep in the caverns beneath the surface of Kessel with some speculation attributing these devices being the creation of the Celestial s . They were responsible for maintaining variables and unimaginable numbers contained within the installation that served as a giant astronomical observatory of the galaxy which contained the coordinates of all gravity wells . Bogeys were pure energy and seemingly fed on the glitterstim found in the mines . They became the main diet of the energy spiders that secreted glitterstim . By the times the Spice Mines were being mined for glitterstim , these beings were long thought to have been the creation of many a scatterbrained prisoner or mine worker . In 43 . 5 ABY , Leia Organa Solo uncovered the true nature of the bogeys whilst exploring the underground levels of Kessel . Her contact with them allowed her to sense a feeling of futility among them as the bogeys began to feel that the data they were maintaining was going to be lost with the cycle ending . After the machinery in the caverns of Kessel was destroyed , the bogeys disappeared with their existence seemingly tied to those devices .