Board Thread:Warhammer 40k General Discussion/@comment-6134883-20130417202949/@comment-3258762-20130620171726

The energies of the warp are not necessarily negative. It is a very bad way of saying it

The Sisters, Saints, Priest etc draw power from the Emperor while those devoted to the Ruinous Powers draw power from the Chaos Gods.

Negative Warp Energy would, in a common sense, mean it gave you the power to destroy. Positive would mean you would get the power to do positive things, AKA heal people, reconstruct stuff. But that's not the case, now is it? Daemon Princes become more powerful (Positive aspect) while also more destructive (Negative Aspect)