The trouble with kingdoms of heaven on earth is that they're liable to come to pass, and then their fraudulence is apparent for all to see. We need a kingdom of heaven in Heaven, if only because it can't be realized.
When you start becoming really successful, the demons start to tempt you - the demons of vanity and self importance, drug abuse, the feelings of fraudulence. But, it's also a thrill. That's what I found weird.