Board Thread:Warhammer 40k General Discussion/@comment-98.81.158.208-20140213190331/@comment-86.173.133.71-20160110132030

The canon material of 'Vengeful Spirit' as well as a couple of other books do suggest that whilst the Emperor is indeed the most mighty human psyker we know about, that he may have increased/supplemented this power after some kind of action on Molech.

The hows, whys, wheres, whos, whens etc of the Emperors abilities are not known in that great a detail to my knowledge.

There is a lot of back story possible such as the Emperor trying to recruit Ollanius Persson in (if i recall correctly) pre-nazi, Weimar Germany etc which woul be good to know.