You also have to learn how to recognizewhen you're in a dream, and it helps to...

You also have to learn how to recognize
when you're in a dream, and it helps to practice
questioning reality. Looking for dreamlike qualities in the day
and then asking yourself, "Wait a minute, is this a dream?" [narrator] She says the more you ask
the question in waking life, the more likely you are to ask it
while dreaming. And once you've realized
you're in a dream, you can influence it. If you look at the activity of the brain
when someone is in lucid dreaming, the frontal cortex, the part right up
in the very front, the prefrontal cortex, that seems to almost wake up while
the rest of the brain remains asleep