No. I'm actually making the same point C. S. Lewis made in (I think) the Screwtape Letters--when you are asleep, or insane, or (in Lewis' application) in the natural, sinful state, you cannot understand the state you are in because you are in no condition for accurate thinking. Lewis was making the point that though Adam and Eve were able to experience sin, Satan's promise that they would be 'like God' in knowing good and evil was false, because as sinful creatures they were blinded to the kind of knowledge God has of sin. They had a sinner's understanding of sin, which Lewis compared to the sleeper's 'understanding' of sleep. It's only when we wake up, or are saved, that we fully understand the nature of sleep, or of sin.