If you are totally aware during the day of all the mechanical movement, the ways of your thinking, desire, then you will find at night when you go to sleep, in spite of what all the scientists say, there are no dreams. The mind, the brain is quiet because all your problems, all your activities have been dissolved during the day, if you are attentive, are watchful, aware. Then when you go to sleep there is peace; the brain may be in movement but it is a quiet movement, it is not an agitated, anxious movement. Therefore, the brain brings order in itself, so the brain becomes young, fresh. It cannot be young and fresh and decisive if there is any form of hurt. When it is free of hurt, the brain has no resistance.

Apart from the biological ending of the organism, what is death? What is it that you are so frightened of? Is it the ending of your experiences? The ending of your knowledge? The ending of all the things that you are attached to, psychologically? Biologically, when death takes place, whatever you are attached to does end. You are not going to carry your house, your furniture, your books and even your gurus—the Catholic guru, or the Protestant guru, or the Indian guru—with you. So what is it that human beings are so dreadfully frightened of? They are frightened of something ending, of ending psychologically, inwardly.

And knowing it is going to end we want comfort, so we say there must be a continuity. The ancient Hindus said there is a continuity, which is called reincarnation. They said you will be reborn next life according to what you have done in this life. If you have behaved properly, decently, morally, in the next life you are going to be better, and through a series of incarnations, and depending on your behavior, you will ultimately come to the highest principle. That is a very comforting theory, and millions believe in that. The Buddhist attitude is that life is a constant flux, a constant movement and when that manifests, an enclosure takes place which becomes the “you,” the “me,” which through time, through constant movement, undergoes change. And of course the Christians have their own belief in the resurrection; they believe that their own deity woke up from death physically.

Total Freedom: The Essential Krishnamurti
Krishnamurti