Sith holocrons were devices used by the Sith that were capable of containing information. Although their function was similar to that of Jedi holocrons, they usually were pyramids or tetrahedrons, whilst the Jedi holocrons were of cuboid shape, and were accessible only to those who were able to control the dark side of the Force. You have your own Sith Holocron, however instead of the information, the holocron caused itself to be placed in between your chest and you begin to gain weight without hunger.