Board Thread:Warhammer 40k General Discussion/@comment-24383134-20140113002832/@comment-24383134-20140113233107

The only other thing that made sense to me was if the Astronomicon is created just for the use of Humans, seeing as how it's created by the psychic energy of humans and focused by the most powerful Human psychic ever. But even then, there would have to be some sort of 'current' or feeling that is generated by it in the warp for others.