I read many posts about RCs that say looking at your hands is a good reality check. Why is that, how does it trigger lucidity? With other RCs I can understand, you try to breathe while pinching your nose, you can still breathe, ok that's not possible in waking life, must be a dream, or you try to levitate and it works, ok this shouldn't work iwl either, must be a dream, but hands? What's so special and lucid-trigger about looking at your hands? If someone could clarify this I would really appreciate it, I've been wondering for a long time..