Eidelon

Eidolons are a fictional race from the Farscape universe.

The Eidolons were a pacifist race who inhabited the planet Arnessk 12000 cycles before the Farscape storyline takes place. Using empathic abilities, the ancient Eidolons could convince a foe to follow a peaceful path to their objectives. Unable to keep all the subjects of their influence peaceful by themselves, the Eidolons created the Peacekeepers from artificially evolved human specimens.

12000 Cycles prior to the Farscape storyline, Arnessk became uninhabitable, and the Eidolons fled to other planets. Some remained in their Arnessk temple, however, and entered suspended animation of a sort, causing their temple to disappear from time. When the three probes that comprise the Darnaz Triangle were reactivated by Crichton, Chiana and Jool, Arnessk becomes habitable again and the temple reappears.

In Farscape: The Peacekeeper Wars, the last surviving Eidolon colony is discovered hidden on the water planet where Moya is healing. Over the time they have been away from Arnessk, however, they have lost their empathic abilities. Crichton takes a pair of the Eidolons to meet their ancestors in the hope they can be taught the power once more, however the Scarrans eradicate all of the ancient Eidolons.

The Eidolon colony does eventually regain it's power through Stark, who crosses over one of the dying ancestors, and in turn passes the ability on to one of the colony. The event also leaves Stark's mind at peace, no longer filled with the pain of others, and his power to cross spirits over is gone.