Wm. Blake: Mad - or Maddened?

I have finished regrading Ackroyd's study of Blake. I think the question is, was Blake mad or maddened - and my view is it was the latter. Certainly, this one man, a mere grain upon the beach or humanity, did indeed include a World, Heavens, and Infinity - and expressed them. As a post-Republic pietist, I suspect he had no strong belief in Providence, but his irony and wit balanced some of his frustrations. That is my guess and impression, not Ackroyd's! There was more contact with Palmer than I had realised: I intend to turn to him next. Also more contact with STC than I knew. Is Blake's true emblem the Ancient of Days, as Ackroyd suggest, or the child chimney-sweep?