Well, according to Ken Martin from the forum at the Moe Norman Academy, here is his response to the same question.

At the Mission Inn Clinic, Moe referred to a recent visit he had with Manuel de la Torre, a world renowned golf professional. It seems Moe's awareness of his forward swing improved based on that meeting and, as a result, he was more "free" through the strike than he may have felt in the past.

Below is a quote from a nice article about Mr. De La Torre in an article published in Golf Magazine in 2005 (here is the link http://www.golfonline.com/golfonline/instruction/teachers/article/0,17742,1019089,00.html).

Ken M.

Don't be intimidated by the complexity of the golf swing. It's similar to some everyday tasks. Think of chopping wood or hammering. You hold the implement with your hands and use your arms to apply the power. Same for golf. As you swing, picture one of those activities. You won't think technique; you'll swing the club back with your hands and then forward with your arms as though it were one motion.

Swing it forward

To me, a swinging motion is backward and forward, not up and down. That's why I always use the term forward swing instead of downswing. After all, you're trying to move the golf ball forward, not down into the ground. I tell my students that the club is pulling in the direction of the target--that's an effective image to have through the hitting area to achieve full arm extension.