Board Thread:Warhammer 40k General Discussion/@comment-24821739-20140604204305/@comment-6078851-20140626135910

77.251.177.11 wrote:

...surely the astronomicon is powered by psykers and then guided by the emperor on the throne. the emperor is the source of the astronomican, it's stated quite clearly in this wiki's page on 'the emperor of mankind'. the thousands psykers that are burned out every day are simply fuel for emps, but the astronomican isn't powered by anything other than the emperor, and when he dies the source of the astronomican dies. to my understanding the astronomican isn't even guided, it's simply the aura of his power within the warp that shines so incandessently that it can be used as a beacon.