He's just a newbie. Well Non-lucid dreams are where you aren't aware and you really can't have much control.

In a lucid dream you have control (not all the time). When you are experienced at it you can do pretty much anything. Fly, fight, have sex. Pretty much anything you want. It's really a cool experience and (in my opinion) is better than any video game you can play.

So pretty much: Non Lucid= Unaware that you are dreaming and no control.
Lucid= Control and aware that you are dreaming.

Hope this helps.