So reading the loremaster description is tates that "When you understand the secrets of the universe you understand yourself." The weird thing about this level is that the character can gain psy rating, which doesn't seem to mess this the 40K fluff, a person spontaneously developing psyker power is a danger to themselves and others. So I propose this replace all the psionic references with sorcery. Not that it is any less dangerous, but it makes a little more sense considering the amount of forbidden knowledge and other knowledge. Of course it also follows the theme of knowledge corrupts.
Salcor