Demand is born out of duality: 'I am unhappy and I must be happy'. In that very demand that I must be happy is unhappiness. When one makes an effort to be good, in that very goodness is its opposite, evil. Everything affirmed contains its own opposite, and effort to overcome strengthens that against which it strives. When you demand an experience of truth or reality, that very demand is born out of your discontent with what is and therefore the demand creates the opposite. And in the opposite there is what has been. So one must be free of this incessant demand, otherwise there will be no end to the corridor of duality. This means knowing yourself so completely that the mind is no longer seeking.
J. Krishnamurti/Freedom from the Known, 113
