Osho : What happens when you simply sit? The whole energy that has been moving in the body, outside the body, in actions, is no more moving. You become a pool of energy. The energy goes on gathering; you become a reservoir. In zazen you are not even allowed to sway or move your body, not even a slight movement, so no energy is invested in action; all energy becomes available. It goes on falling inside. It fills you. It starts overflowing.
When the moment comes of overflowing, there is satori. Satori is a moment of energy overflowing. Thinking stops by and by. It takes time – almost three days is the time. If you exert day and night, continuously, somewhere in three days the moment comes when the energy is so much it simply explodes.
Everything calms down – a sudden lightning inside. Everything becomes clear – a clarity of perception is achieved. This is what is called satori in Japan.
Satori is a glimpse of samadhi – the first glimpse. Of course, in the first glimpse you cannot recognize what it is. It is so unknown. You have never known it before, you have never come across it before. It has to be approved by the master.
The next time when it comes you will be able to recognize it, but for the first time you don’t know what it is, how to understand it, how to interpret it. It is so vast, and all your experiences are irrelevant to it. Your whole past is irrelevant to it.
All your hopes for the future are irrelevant to it..It is something you had never hoped. It is something you had not even imagined. It is something you had not even dreamed. How can you recognize it? That’s why the first satori has to be approved by the master. Up to the first satori one has to remain with the master. Then one can move on one’s own, but not before that.