Remembering your dreams is the starting place for learning to have lucid dreams. If you don't recall your dreams, even if you do have a lucid dream, you won't remember it! And, in order to be able to recognize your dreams as dreams while they are happening, you have to be familiar with the way your own dreams work. Before it will be worth your time to work on lucid dream induction methods, you should be able to recall at least one dream every night.