User blog comment:IamJakuhoRaikoben/Chapter 477: Transport, Review./@comment-4829046-20160315122429/@comment-5303512-20160316043206

Well, despite what most has or still believed in, with newest information, it is safe (at least to me) to say that the "Power of Feelings" or "Nakama Power" is an actual and main source of power for wizards (Kinda like Mantra in Asura's Wrath). And those who don't have feelings will never tap into their full potential (hence the villains of this series).