Octolith

The Octoliths are large crystals that are required to power the Alimbic Cannon. The Alimbics apparently created them as a power source, but when their civilization was ruined, the hid each of the eight Octoliths inside the Infinity Void by the use of teleporters. This meant that Gorea, along with the Oubliette, cannot be accessed without all eight Octoliths. {samus} gathers the Octoliths in order to destroy Gorea, but the other Bounty Hunters also try to gather them so they can claim the "Ultimate Power." If Samus faints while fighting another hunter, she will lose one Octolith and will be forced to retrieve it. In order to keep Gorea contained, the Alimbics put their best defenses around the Octoliths, but Samus still managed to obtain the all. Whenever one is collected, Samus recieves a telepathic message, most likely from the Alimbic spirits she meets at the end of the game.