Board Thread:Warhammer 40k General Discussion/@comment-108.31.46.183-20150605045910/@comment-6078851-20150607160810

from what i've read about emps, the astronomican, the golden throne, and the daily psyker-sacrifice, i've always interpretated it that it's emps himself who feeds on the psykers. but since the core part of the golden throne (the psychic-amplifier) was built by xenos, xenos who were older than the human race itself (which to me suggests old ones), it could be that it's the psychic-amplifier that requires the sacrificial psyker-input.

or maybe emps doesn't want people to know that he requires sacrifice, and passes the blame to the device :P