The little man

I recently was wondering over the significance of the man that appears during Lisa's dreams that supposedly tells the future. I thought that maybe the man was a part of the native culture because Ma-ma-oo talked about it, and said that her mom had it and she said it was an unreliable way to tell the future. But, then I thought if it had a bigger significance. I thought that this man was a way to show the way that smoking and drinking damages your body, but, I realized that she saw the man before she started smoking. I will write more on this topic.