I would caution any one who places too much in to a dreams meaning or "interpretation". They can be wonderful, terrible, or just nothing. The reason we sleep is for our body to repair any issues and prepare for the next day, a maintenance stop. While we are in this state, our body is paralyzed so we do not try to react to our dreams. Some times we break from that during sleep or get caught in the middle of consciousness and dream. There is nothing magical or mystical about any of this. Which is why I caution people of placing too much meaning to dreams. They could be playing out your day or they could be tossed salad. There may be some meaning to some of the parts of the dream and there may not be any meaning at all. There is no way to determine which. It is also a time our mind cleans up it's memory by disposing of some memory and re-ranking other memories. Which is also why we some times can not distinguish if our memory was real or a dream. There is no hidden meaning here, it's all very scientific