This is all crap. Dreams are random. One theory I heard that scientist came up with is that dreams are a survival theatre that help assist with skills in order to surive. While our ancestors were always dreaming about getting chased by sabertooth tigers our dreams become confused due to modern society. This would explain nightmares and dreams about life threatening situations but perhaps not dreams with just random weird events. Also people are shown to improve in their ability at new tasks afetr a sleep or nap.
They came to the conclusion by allowing mice to sleep but not reach the stage of sleep where dreaming occurs (using a simple and clever method that i wont go into explaining). These mice didn't act normally in dangerous situations, such as staying in the open in the field rather than running for cover. They gave the mice some sort of drug which would have counteracted any sleep deprivation but they still acted the same and they concluded that it was the lack of dreaming that caused this unusual behavior. Wish I could find the article.
Do mice worry about what their dreams mean? I don't think so.
They came to the conclusion by allowing mice to sleep but not reach the stage of sleep where dreaming occurs (using a simple and clever method that i wont go into explaining). These mice didn't act normally in dangerous situations, such as staying in the open in the field rather than running for cover. They gave the mice some sort of drug which would have counteracted any sleep deprivation but they still acted the same and they concluded that it was the lack of dreaming that caused this unusual behavior. Wish I could find the article.
Do mice worry about what their dreams mean? I don't think so.