We can tell the difference between our dreams and reality because we have a thing inside of us that tells us which is which.

So, one way to promote lucid dreaming is the practice of asking yourself all through the day, "Am I awake?" When you get into the habit of this, you will start to do this in your dreams. And when in a dream, you will get back the answer, "no." Then you will be aware that you are in a dream.

I hate idealism. Similar to hating utopias. Good for stimulating the brain, but very bad for ever being applied.