This is my crazy idea but ,when you sleep you breath in through your nose and out your mouth while having a clear mind. The dreams seem so real some time .I wonder that if I meditated for 8 hours which is a pretty average sleeping time, would I be able to have thoughts like in a dream. The other night I had a dream that I cut myself it hurt, a lot, so I woke up and when I did I still felt the pain sensation in my hand and as I cleared my eyes the pain started to go away. This makes me wonder of what the mind and spirit are capable of. Can we die in our dreams can we grow stronger or perhaps move objects with our mind. Who knows?