[justsomeguy]

Quote:

Originally Posted by iPLEOMAX And everything you see while dream is something you've already seen in real life.

This is somewhat correct. Not the dream specifically, but the people/faces/creatures you see are the ones your brain already knew. Your brain is incapable of creating new detailed faces, while it CAN create random background images.

More experienced 'lucid dreamers' are sometimes able to create their own envoirment, however not the people/creatures themselfs.

As IKKE said, there is lucid dreaming, but also lucid nightmares. Something to be aware about is an horrifying experience called 'sleep paralysis' in wich the person is half-asleep but still dreaming.
In some cases people could see the monsters from their nightmares in their room but they could not move or scream.

Anyway, lucid dreaming can be awesome but be prepared to get scared shitless at some point.