to sum it up, this sounds like one of those end of the world dreams, look that up and see if it helps. Take a look at one of the online dream interpretation sites like this one or dream dictionary now is another good one. Hope this helps.

Recurring dreams occur to get some point across to you. Not sure about the cause of the lucid dream though. If you want to find out about what dreams mean in general then take a look at this site here as it has lots of useful info about dreams in general.

I don't think it is dangerous if you are perfectly sane. If you had mental health issues then obviously I wouldn't recommend it. Dreaming is not dangerous so I can't see how another form of dreaming can be under normal circumstances. You can read about interpreting dreams here with an online dream s...

Yes it sounds like one to me. Controlling the dream is an aspect of lucid dreaming, but if it was a general dream then try interpret it using a dream dictionary like dreamdictionarynow , though dream interpretation and controlling dreams are two seperate things; controlling dreams, i.e. lucid dreami...