Hi What Tha Phak,
Since I have both read about this and experienced it, I say it is possible. When I reflect on my own experience, it seems that the key is to stay calm when lucidity (or awareness that you are dreaming) approaches. This may sound tough, and I am no master of it by any stretch of the imagination, but try to bring on the lucid awareness gradually, because any sudden shocks or excitement and *WHAM*, you wake up! If you can keep it smooth and continuous, you should be able to prenetrate your awareness to the point/level/depth that corresponds with OBEs, if that's what you're trying to achieve.
Regards,
Psyman