It will be difficult in the beginning. You may go a little. Some part, some fragment of a dream which you were just dreaming before the sleep was broken may come to your mind. But by and by, with gradual effort, you will be able to penetrate more and more and more, and after a three-month period you will be capable of moving backward to the point when you fell asleep. And if you can go backward deep within your sleep, your quality of sleep and waking will change completely, because then you cannot dream; dreaming will have become futile. If you can go back in the day and in the night, dreaming is not needed.
Now psychologists say that dreaming is really an unwinding. If you yourself have done it, then there is no need. All that has been hanging in the mind, all that has remained unfulfilled, incomplete, tries to complete itself in the dream.
You were passing and you have seen something – a beautiful house – and a subtle desire arose in you to possess it. But you were going to your office and that was no time for daydreaming, so you just passed by. You did not even notice that the mind had created a desire to possess this house. But now that desire is hanging there, suspended, and if it cannot be removed it will be difficult to sleep.
Difficulties in sleep basically mean only one thing, that your day is still hanging over you and you cannot be relieved of it. You are clinging to it. Then in the night you will see a dream that you have become the owner of this house – now you are living in this house. The moment this dream comes to you, your mind is relieved.
So ordinarily people think that dreams are disturbances to sleep – that is absolutely wrong. Dreams are not disturbances to your sleep. They are not disturbing your sleep, they are really helping; without them you could not sleep at all. As you are you cannot sleep without dreams, because your dreams are helping to complete things which have remained incomplete.
And there are things which cannot be completed. Your mind goes on desiring absurd desires, and they cannot be completed in reality, so what to do? Those incomplete desires go on in you, and they keep you hoping, they keep you thinking. So what to do? You have seen a beautiful woman and you were attracted to her. Now the desire has arisen to possess her. It may not be possible, the woman may not even look at you. So what to do? The dream will help you.
In a dream you can possess the woman, and then the mind is relieved. As far as the mind is concerned, there is no difference between dream and reality. What is the difference? Loving a woman in reality and loving a woman in a dream, what is the difference for the mind? There is no difference. Or this may be the difference, that the dream phenomenon may be more beautiful, because then the woman will not disturb you. It is your dream and you can do anything, and the woman will not create any problems for you. The other is absent completely, you are alone. There is no barrier, so you can do whatsoever you like.
There is no difference for the mind; mind cannot make any distinction between what is dream and what is reality. For example, if you could be put in a coma for one whole year, and you dream on and on, for one year you will not be able to feel in any way that whatsoever you are seeing is a dream. It will be real, and the dream will continue for one year.