What is a lucid Dream?

In a normal dream you do not think about it that you're in a dream, you will usually assume that everything is real, how scary the situation is. In a lucid dream, the dreamer is aware that he is dreaming, and he can make choices. You dream it further, but you look different from the dream, because you know that is separate from reality. Characteristics of a lucid dream:

You know that you are dreaming. An event can be triggered allowing you suddenly realize that it is not real, as you see a strange face in the mirror.Everything really, but it seems it is not. Just as in a normal dream everything looks lifelike. It is difficult to realize that this is not real, but you surely know that you are dreaming.Anything goes. Everything is possible and there are no consequences, because it is not really anyway. In your dream may be a consequence, but you'll be in your dream not attract much, since you know it's not real.You remember as much as in your waking life. You can both memories from your dream life of your waking life.Thanks :)