Next: How do my dreams interact with my waking life? Up: Introduction to the DreamFAQ Previous: Does everybody dream?
A. Sensual "input" while sleeping is incorporated into dreams. Most notably, while sleeping, you hear as well as while waking - the ears are never turned off. This leads to the consequence that what you hear while sleeping, you'll hear in your dreams. The sound is always coming from "somewhere". Common experiences of this kind are a telephone ringing or music from the radio. The same holds for the other senses. Note that it is not important how loud some noise is to get noticed while sleeping - even an otherwise unnoticed sound, like a mouse running over your floor, can wake you up if it is uncommon or otherwise alarming to you - on the other hand, you can get accustomed to high levels of noise, like construction work nearby. (What definitely will wake you up is someone knocking at your window if you live at the 10th floor ;-)
It is an interesting experience that you can hear exactly what is going on, but will forget it on waking up along with forgetting the rest of your dream. This includes things such as news broadcast heard on the radio - after waking up, you have forgotten it. It is like you have dreamed the news broadcast as well - but distinguishing this fact is a good clue to lucid dreaming and the way "lucidity inducing devices" work.
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