Sweet Exorcist

Well what do you know... just checking out which Curtis Mayfield tune it was that (brilliantly) intros The Deuce (also gathering in brilliance - takes a while to get going, give it time)... and realised that despite loving the obvious Mayfield tunes I'd never really properly done his discography... Had a look and what I did see but there's an album by Mayfield, smack dab in his creative prime, called Sweet Exorcist



So this must be where Sweet Exorcist got their name from



It's a great name - for a band and for an album. But I wonder why Richard H. Kirk and DJ Parrot picked it...  And what the phrase signified for Curtis M?