meditation is really a transcending of the process of dreaming. You are constantly dreaming – not only in the night, not only while you are asleep; you are dreaming the whole day. This is the first point to be understood. While you are awake you are still dreaming. 

Just close your eyes at any time of the day. Relax the body and you will feel that the dreaming is there. It never disappears, it is only suppressed by our daily activities. It is like the stars in the day. In the night you see the stars. In the day you cannot see them, but they are there always. They are simply suppressed by the sunlight.