It seems to me that dreams are the reaction of our mind to what we've experienced or what we feel emotional about. But they do not really mean anything. Though people have been trying to find some deeper sense in their dreams for ages. That's why books about interpreting our dreams sell so well. Anyway, everyone can believe in whatever he wants to as long as it doesn't harm others. As for me, I don't believe that dreams have some meaning, I don't remember them very often, though sometimes I feel woried if I dream of something bad happening to me or my dearest people.