I'm not sure what you mean by believing in them, but i'm pretty sure I shouldn't follow them. Last night I woke up from a dream where I was choking someone to death. I don't remember the details of what happened before that, but I don't think they were any nicer. As far as lucid dreams go, never really had one or tried to. And I used to have one dream that would repeat every two years or so, but that stopped around when I was seventeen or eighteen.