Practicing being able to remember your goals for a LD when you become lucid translates into waking life, and is an important practice for waking life. When I'm watching TV it helps to suddenly become real-life lucid and remember that my goals for my life are to make art and share it, and that watching this stupid TV show is not helping me with that goal. It also helps to be able to remember who you are in waking life, meaning what your values are and who you see yourself as. This helps in difficult situations by leading you to do things that are in line with the person you want to be.