Osho : " The moment when you are dropping into sleep is the moment to encounter the unconsciousness. If you can remain out of sleep, then the unconscious will be real, because that is the line. The very line from where you drop into sleep is the line where you can encounter the unconscious.
You have been sleeping everyday, but you have not encountered sleep yet. You have not seen it: what it is, how it comes, how to drop into it. You have not known anything about it. You have been dropping daily, coming out of it, but you have not felt the moment when sleep comes to the mind and what happens.
So try this, and with three months effort, suddenly one day you will enter sleep knowingly: drop on your bed, close your eyes, and then remember, remember that sleep is coming and "I am to remain awake when the sleep comes".
It is very arduous, but it helps. One day it will not happen, another day it will not happen. Persist every day, constantly remembering that sleep is coming, and "I am not to allow it without nowing. I must be aware when sleep enters. I must go on feeling how sleep takes over, what it is."
One day sleep is there, and you are still awake. That very moment you become aware of your unconsciousness. And once you become aware of your unconsciousness you will never be asleep again during the day. Sleep will be there, but you will be awake simultaneously. A center in you will go on knowing; all around will be sleep, and the center will go on knowing. When this center is knowing, dreams become impossible. Then you are asleep in a different sense, and you will be awake in the morning in a different sense. A different quality comes by the encounter.
Note: I have tried this meditation and this phenomena has happened with me for some minutes. i have experience when sleep comes then our body temperature comes down and as if a black cloud has covered you. there are some 4-5 second time which is a transition period from waking state to dream state. if one can become aware in this transition period of 4-5 seconds then one can watch the dreams...
