C said:It would be very intriguing to find out that Idea is not just the thought of mankind or subconsciousness of mankind, but actually is the Idea of a higher being. Maybe a real God or so.
Well, The Idea of Evil was formed from humanity's subconscious desires, but it is a distinct entity in itself (and "higher" sort of, considering it exists at the bottom of the Abyss ), with its own (malevolent) will. And it's definitely the God of the Berserk world.