User blog comment:Vivaporius/AT Idea: Imperial Civil War/@comment-2253300-20120407031354/@comment-3258762-20120407074950

Supah, you are forgetting that we are talking about The Emperor, who destroyed all the major cities of a world just because they worshipped him.

Also, just because he is aware does not mean he can act. But what if he woke up and, while unable to move, started directing for example his Adeptus Custodes to spread the word of his imminent arrival. He does not have to leave the Throne, he only needs to make his existance know. So to speak.