I've had lots of precognitive dreams, only been seeing it when it was "to late". Most of them are more in a way of synchronicity but some of them are some kind of warning to me, maybe from my underlying intuitive senses, because maybe I ignore something in real life. I dreamt for a long time that I had to live with my family again, and it was more a nightmare, I don't get along with my parents and they are at odds). I couldn't make sense out of it; nowadays I know why I dreamt it: because a family member got really sick and needs help and for me is the decision: do I help or do I keep looking away, when I help I will have to live there. And we kids could have noticed the signs of this particular illness, if we had taken a closer look. But we just believed all the excuses, because we just saw them maybe four times a year ("Oh I am just working too hard, I am tired" and so on). Well, reoccuring, prophetic dreams are powerful I believe, they have to tell you something important.