Well, there's lucid dreaming, and then there's OBEs (Out-of-Body Experiences) which is what I think you're referencing. OBEs are a spiritual state, where you exist as nothing but a spirit in your dream world rather than a tangible object. Usually in OBEs it's easier to interact with your sub-conscious, and delve deep into your mind. 

Simple lucid dreams, which just means, being "awake" within your dreams is like having full consciousness and feeling, which is what I want to experience more of. Taking control of dreams is boring if you can't feel and experience them lucidly.