I think it was just a borderline lucid dream. You became lucid momentarily, but did not hold onto that state and slipped back into the dreamstate. But the dream did remain highly vivid, so you were probably still close to lucidity, it was just being *disacknowledged* instead of acknowledgeing your lucidity. I have had times when I become lucid in a dream, and I'll start to do something, but I forget to remind myself I'm lucid and I fall back into a regular dream, but have several clues during the dream, like thinking "This seems almost like a dream". There is a weird borderline I've noticed for lucid dreaming where your mind is accepting that it is a dream, but you are not consciously aware of it. So I would not call it a lucid dream except during the times where you can honestly say you knew you were in a dream. Having thoughts about dreaming in your dream doesn't make you lucid, it's when you become aware of the dream around you and acknowledge it.