the dark hair represents a melancholic feeling probably, but the hair is uplifted and that's kind of strange = maybe it's showing the messy confusion of sadness? I guess each person sees art in their own way:)
Made me laugh when I read it, but I'm not sure that it is the case - if your brain is empty, you will feel bored and unchallenged and those are signs, aren't they!! But I guess some may like it that way (not me, though)!☺️