Starghast

Starghast (Or Spirraighphir [Spear-raph-fear] in Niaran) is the title given to people who are chosen to traverse the space between The Follow and The Material, usually to carry out very specific tasks that will aid either world and their inhabitants. Such a person would be transferred into a physical body, selected by someone of authority in The Follow, and given a rough time frame of Eian years before being expected to carry out their purpose there. The elusive process of the transfer is also incredibly intensive on the individual that experiences it, thus rendering them ignorant of their true selves for some decades. Spirraighphirs descend into their mortal bodies and end up believing themselves to be a regular person like anyone else until their supernatural abilities grow stronger.

Though their is almost no information on the motives of spirraighphir transfers, it is believed to be considered strictly last resort and otherwise dangerous, as the in the wrong body, an unaware spirraighphir can wreak havoc upon The Material (See Th'erraez). Once their set task is completed, the individual will be given a choice to either return to The Follow for eternity or live out the rest of their new mortal life and simply cease to exist in all worlds after death.

Powers
Each spirraighphir is gifted with extraordinary abilities, usually random in nature but mostly centre around some form of telekinesis. Others have been known to be able to sap the soul of a victim and use it as a physical energy on another in a powerful shockwave. They can also harvest souls and place them in another body (provided it's a corpse).

Their abilities come at a cost however, one equal to the measure of their usage, and usually related to the exact power they use; this is so that they cannot abuse their powers to wreak havoc in The Material. Telekinetic abilities tend to cause strain on the spirraighphir's body depending on how long or strenuous their use of it is at any one time. The powers that involve harvesting a victim's soul would drain the life of the spirraighphir by some degree, often causing them to die at a very young age if used often.