Hi, welcome on board!

The simplest explaination of a Lucid Dream is "A dream in which you conciously know you are dreaming". It is something that you most definately know and it can be quite shocking and perhaps even change the way you look at the world and reality.

Please take time to look through our tutorials. There is a lot of knowledge in there on every aspect of lucid dreaming including a lot of good techniques to increase the number of lucid dreams you have.

Good luck and be sure to ask any questions you might have!