Depending on what you mean by "purpose", I can't say I disagree. According to one of my favorite literary theory professors from undergrad, this places Mr. Sullivan firmly on the Augustine side of the great Kant vs. Augustine divide.
Me, I like to slide around depending on, oh, I don't know. Never really figured it out.
This post courtesy of Ambient Music Blog's number one, long time reader Dave P. Yo, Dave!