Hmm, is it possible that learning about them is the reason it's a dream sign? Either way, awesome opportunity to keep yourself working on awareness

As far as dreaming about lucid dreams, it gets a bit tricky. It's certainly possible to dream about being lucid, but not actually make that critical "Oh wait I AM dreaming" connection. I've had a few of those and people first learning to lucid dream especially seem to report them. Once you've had a bit of experience with real lucids you'll definitely get the distinction. When it comes to an actual lucid dream though, really the only requirement is that you are in the dream and very consciously saying "Oh hey, I'm dreaming". Depending on the dream, and if you stabilize your lucidity or increase it, you can have a very fuzzy knowledge and still be thinking more like a crazy dream person. You can even forget that you are lucid while still in the dream. You sometimes are even just barely lucid that you might have trouble controlling what does go on and how you behave. A lot of people seem to have this problem when it comes to lucid sex distractions. They'll become lucid, and know they want to do something fun like fly into the sun, but instead they just end up having sex (I think guys are way more prone to this ). So, as the person who experienced it you'll have to be the one to gauge your own lucids and really determine if they were lucid dreams or not, and if they were what you didn't like about them and how to improve upon that. Like I said, with more experience you should get more comfortable with the notion and the feeling of being lucid, as well as the ability to control yourself and the dream.

Damn that was long sorry