"People have sub-personalities and they play them out, a mature person is someone who can negotiate and allow sub-personalities to have their say even when we may find some of the voices unattractive. There's parts of all of ourselves we don't like. 'Print for a Politician' tries to capture that."
http://www.graysonperryprints.info/biography.php?cur=GBP
section of interview where he answers a question on therapy
Full Interview