implanted delusions.

I came across this article and assume it's content is a valid perspective from an actual scientologist. http://www.lermanet.com/exit/onauditingbystacy.htm I'm curious to know others opinions about the article mostly about the effects of the process. My personal belief is that later in the process the person is definitely suffering from illusions of grandeur but would you also believe the person would be completely psychotic and out of touch with reality completely?

Even if it's not an official statement from a true scientologist the process described certainly is an interesting read and provides alot of insight on how brain washing works I must admit before reading it I had no idea how a cult could control it's members. I would like to learn more about it if you can suggest some reading material.