It’s surely possible to die in your sleep or inside of a dream, however, to be killed by a (lucid) dream in the real life — not really. Honestly, there is really no evidence that a lucid dream can kill you. The thing is, it cannot be proven on 100%. There are many different things you can do with regards to lucid dreaming. … It’s important to remember if you’re in a scary Lucid Dream that nothing can actually harm you. For that reason, there’s nothing to actually be scared of, but as you probably know when you’re in the experience, your mind makes it real. :Yes, you can feel pain in a lucid dream – but usually only if your awareness is specifically tuned into that sensation. I can only remember a few times when I’ve actually felt real pain while lucid dreaming. You can lucid dream anywhere with the lights on, off or dimmed. The light does not make a difference unless you find you cannot sleep with lights on, then you may have no dreams.