Last night I had this weird dream. I can't remember all of it but parts of it. The first part of what I remember is that I was in a environment surrounded by mountains, running through a broken bridge. I thought it was real life, it was so realistic, I genuinely thought I was there. The bridge collapsed and I'm suddenly in a room in a grey room much like a cell. Without realising it I'm on my knees begging this girl that I came from a parallel universe in which we were together. In the dream I genuinely believed, my heart was pumping fast then. I know this sounds stupid but would you say this was a lucid dream? What does this mean? Am I close to lucid dreaming?